I think we should wait the full release, in OS you have four different difficulty levels, in almost all the games I play there's a choice on how difficult the game should be.
Saying "we should wait" is kinda weird when it's EA it's important to discuss now and affect the development.
We can assume there will be difficulty levels. But since currently there are not, we should assume this is standard, baseline difficulty. With this in mind, you could argue "HP bloat should only exist in a harder difficulty setting", for example
i see your point, and indeed is kinda weird ^^', but (obviously there was a "but" coming :P

) my comment was about those players that feel like the actual combat system is too difficult (I get their point, sometimes it gets frustrating to get involved in fights).
On the actual mechanics I lack knowledge so I trust the players that state how difficult can be raised by other means different than hp bloating and numbers of npc. Still I wonder if it's possible at all to make such changes while mantaining coherence with the D&D 5th edition rules (alas I shiver if I think that your affirmation on the actual system being that standard, that is no different difficulty levels, becomes real. It would make hard the higher levels, making fights more a matter of piling up barrels and searching for altitudes and boringly long, like the Goblin Camp that takes a lot of time to be cleansed).
Larian has a very complicated issue in his hands: to balance the needs of seasoned and skilled (and lucky) players and those of unlucky not so skilled ones or the lazy ones (I fall in the unluck ones, miss miss miss critical miss are something I got used to

)