I feel like those points don't and wont stop BG3 from ticking all 3 boxes for the vast majority of players. What you judge as "ridiculous" is understood by most as nothing more than typical gameplay interactions. It is ok to show exaggerated things in a fantasy video game, the suspension of disbeliefs bar is way higher in this case.
Even in this work in progress state, I have already seen plenty of people invested in the story, challenged by the game and often reaching a "catharsis" state after some exceptional events. Would balancing the few overpowered interactions or reworking the chain system improve the game? Sure! But the foundation is solid enough to already have a fantastic time. DoS2 has already show that and BG3 is its logical next step.
Whilst I broadly agree with your first points because it is clear a lot of people do like this game and the things bother many about BG3 also do not bother plenty of others, probably a majority in fact.
Nevertheless, to address your last point, this is not the sequel to DOS2, this is the sequel to BG2 and that is the crux of the issue in many instances. So I can't agree that BG3 is DOS2's logical next step, despite sharing the same developer. If I had made my name working for Ford motorcars and suddenly landed a job at Ferrari, I would hesitate at trying to make Ferraris more like a Ford but that's just me. It is clear Larian wanted the BG IP to further their own ends, not to pay homage by making the successor they could have chosen to do. When I see a Larian storyboard of various sexual positions I know that the BG IP has gone off in a direction I do not care for.
