Sorry, but I do not understand: First you finish the game and then you get options to make the next playthrough easier?
The first playthrough will be the hardest because you have to learn everything.
The next one will be easier because you already know the basics and some details about areas and quests, even if you take a different route.
PoE2 did a similar thing: You could unlock bonusses by getting achievements in the game.
I think that all options should be there from the start.
There is a default difficulty but you have other options too.
If some players think they need some bonusses to get through the game they can get them. Though players cannot know how hard it gets before they start playing.
If players want to play solo with no reload and some extra challenges from the start, they should be free to torture themselves as much as they want.

Prof. Dr. Dr. Mad S. Tist

World leading expert of artificial stupidity.
Because there are too many people who work on artificial intelligence already