Eh I think it would be hard, but guide vs non guide users have very different responses.
My play group has 3 players i introduced to the game, 2 struggled upon hitting empowered quite hard. The jump from the 90 echo to the 100 echo is quite large, not sure why anyone would say it isnt. going up 10 levels on top of then 60% more damage is probably in the realm of 75% more total damage, this leads to more stuns, more burst, more everything.
For reference going from 100 to 200 corruption is going from 1.6x damage to 2.69, which is 68% more damage, and is likely slightly less then the jump from 9o to 100 empowered monos.
The player who didnt struggle used a guide for hammerdin paladin(this was before sent rework)
The other two winged it, and had 0 problems until empowered where its like smashing into a brickwall. the curve from the first mono to the last unempowered is quite good, but empowered can be rough for many builds if they dont know how to farm up gear.
I think a bigger issue is that people are just used to more content. All of the people ive talked to who play LE and all the people ive introduced have over 1k hours on PoE, Where there is drastically more content.
1 player quit because not enough end game farming content, this was after he got over the hurdle of empowered. Cause player scaling stops around level 80, you have the majority of passives, and level 20 skills. And by this point if you have tanked the empowered wall, you are showered in Exalted. And so all that was left was chasing better base exalted, he more enjoys the poe gear curve.
The other one who struggled managed to get over the wall, but didnt enjoy many of the skills or build options, and also felt like a lot of the skills he did enjoy simply didnt have any uniques to change them up or make them cool. He is a big bow player, so yeah playing marksmen cant really blame him. He also enjoyed rip blood lich, and rip blood has 0 uniques other then random ones that proc rip blood sometimes on melee, he was a non melee casterâŠ
I think the problem of player retention is way more complicated then simply the game being to easy, its more so the game is easy until its not and then you get into the lack of gearing options and the stale end game for many players used to playing a juggernaut like poe, and its totally understandable why retention isnt there yet.