It’s different in LE for the reason that decisions are supposed to matter. You can respec anything in this game despite your class and mastery. Therefore you are supposed to choose wisely when you have to decide, which mastery you want to go with.
You went Marksman that is obviously a Ranged character. You find a sword and want to be a melee character instantly. This is not what the game will let you do.
You say, it’s a waste if time. Others, like me, say that it is dedication to your build and the decisions you made earlier.
Also I can assure you that a simple respec won’t turn your Marksman into a viable Bladedancer. Idols and some gear affixes a very specific for the Marksman mastery you played and thus won’t fit a Bladedamcer. You would need to put a lot of money and/or time into changing gear.
With skill respec it is a similar thing. LEs philosophy is to prevent quick swap your skill specs depending on content. This mayn8t suit you. But this is the reason a lot of players are actually very happy with LE. It’s different from Diablo 3 where you can swap your skills and specs anytime. Many people did not like this in D3 and are happy that LE provides that build identity. So also with your skill specs, your decision matters.
If you make a mistake, you can still respec at the cost of playtime.
But it gets easier the higher the content is, you are playing. Also the releveling is faster than the very first leveling if your skills. When you are in the monolith, you reap relevel skills very fast.
This automatically forces player to better plan their builds. It hinders experimentation a bit but does not prevent it.
I also relevel skills a lot when playing, even when leveling new characters. Just don’t hesitate to do it, because it’s less punishing than it looks like.
But in the end you have an advantage when you have better thought about your build and stick to a plan.
This is a difference to Wolcen and D3 where skill decisions don’t matter the slightest. And it is an outstanding feature many actual players like.
There are people like you that dont like it and suggest changes. For me personally it would be a job stopper if they implemented instant respecs because this is the reason I never felt good with D3 and Wolcen.
I hope you give the system a chance and can get confident with it.
Cheers.