You’re completely right.
A company for a live-service game can focus on 2 potential goals, either/or suffices to sustain a playerbase which makes them at least struggle along, both are optimal at once.
You either focus on a smooth experience so it feels great to come back to as it’s just nice to replay.
Or you focus on a long-term end-game grind of some form which feels fulfilling by showing steady progress.
EHG sadly did neither. The campaign is a bit of a mess… and the end-game at the top-end absolutely grinds to a halt with at times hours where you don’t even get a try for a craft. So both feel unfillfilling.
That definitely needs to change.
That’s why people ‘run out of enthusiasm’… the moment to moment gameplay needs to feel rewarding. Not the big jackpot hits… but simply playing needs to make you feel at the end of the day that you’ve come a step further to your goal.
If you end with the same as you started (and not even got a try to progress) then the time feels simply wasted.
Which mostly is a issue of gradual increase of difficulty rather then of the distinct difficulty at that point.
It feels absolutely jarring to have the sudden step there. But if you smoothly increase it it feels fine.
Nobody complains about difficulty in for example Monster Hunter games… but the later enemies are compared to the beginning ones ridiculously hard, with a bigger difference then what difficulty increase comparably is in LE… it needs a much higher skill for the game there and still is not only wildly successful but people just don’t complain.
Why?
Because the game provides you with a really smooth and enjoyable progression curve. You’re always challenged at any fight… but they are all also clearly doable.
Well… the first half was 
But fair for the other part you mentioned, with you on that.
Umh… I’m not a great player… I’m ‘decent’ at best. If the gear and blessings are your issue you simply fucked up. It’s piss-easy and still designed for non-exalted gear at that stage even, got never changed.
The initial bosses at D4 are a lot harder then the LE difficulty jump to empowered. Also the jump from campaign to white maps (which is mid-game start basically… despite it being the endgame mechanic, just time-wise for total progression) is far far more grating in PoE.
If your argument would uphold then nigh nobody would get past the campaign in PoE as well, because there you actually have issues with gear to a massive degree comparatively.
But it’s not the case.
No matter the game smooth progression is the first and foremost aspect to be provided. Then you can adjust the difficulty. If it’s all over the place you cannot properly balance.
So even if you’re right first needs to be smoothness achieved.
Oh come on… that’s at the same difficulty as the campaign… actually less so if you got a middling grasp at how to design a build. If you’re blindly slapping together random crap then I agree… but that’s also not the intention.
First is factually wrong. All gear outside of boss-specific empowered drops and Aberroth gear is available at the level 90 monoliths already. They drop exalted items as well and all bases.
The only difference is grand blessings… and those become important for most builds at which are on the weaker side at around 150-200c.
We discussed this before, your build is just crap and it likely hasn’t changed.
Prolly IGN 
When?
I’m an avid Twitch-stream watcher generally letting a random streamer running on the side and keeping my ears open whenever technical talks happen.
I have heard about this topic exactly ‘0’ times during my many years activity in the game.
I would enjoy sources for that to see if it half-way upholds at least. Youtube links, stream links, anything would be fine.
Uberroth is vastly past the difficulty of pinnacle bosses in even PoE.
It’s just a shitty designed boss.
Sorry to say this:
Your build was utter garbage.
To state it in absolutely clear terms.
Atrocious. Hurting the eyes. Facepalm-worthy. Irredeemable.
And you followed yours really shit.
It’s a form of reading comprehension, and you don’t have a high skill in that. It’s something which forms to a degree after engaging with the topic and it is a part inherent ability.
I don’t know which part of it is lacking for you… but one way or the other you screwed up there. And that’s why I’m ripping into you here because it was described in detail why and you’re now like a broken record ignoring that entirely.
You learned nothing from it.
Then you remember wrong.
The only ever statement was that the player drop-off rate is the highest from campaign to end-game and from end-game to empowered.
Which is natural. Same thing happening for PoE or TL:I actually. Whenever there is a ‘distinct step up’ people stop. It’s like a fulfilled journey and a new one beginning.
You built it so atrociously badly that they have more then you do.
My wraithlord char has paper defenses but is a offensive tank. Hence survives by enemies not existing for more then a few seconds.
My Jelkor Detonating Arrow char sucks defense-wise, it’s a glass-cannon, only leech-sustain and no proper defenses. It’s a really atrocious build in the way I made it. It still has more then your character does.
Please stop arguing about something you fucked up on so many levels it’s solely annoying by now to try and get it through your thick skull that it is your problem, not the game’s in that case.
You can see how much I rip into LE left, right and center… so maybe take a step back and think about why I’m defending the game here suddenly when I find fault at every nudge and corner otherwise.
It’s not moving the goal post… your guide is top-tier… your build is F-tier.
You just screwed up.
They had… loads and loads and loads.
To be exact 70% dropoff rate from campaign to maps during earlier leagues. Don’t know how the number is nowadays.
Sadly so, which makes the decision for a unfinished and so atrociously balanced game to ask for money in any extra form baffling.