Larian expanded on going back to Avernus so it became a better, not the perfect rose smelling some want, but yet a better one. If you check the latest interview with Swen, and where he talk about how that was done. I don't really see any other game studio out there do this fan service in such a short amount of time.
And props to Larian for that. The fact that they recognized that there is a problem and took action is a very good sign. Even though I personally dislike the new "ending" and don't see it as something game changing, I appreciate the effort. It's not that people are mad / upset / disappointed because "what the hell Larian, we want more NOW!". I think most of us are upset because of 1). How poorly it was advertised in Community Update (the wording was just not good: "the ending she deserves" and "new optional ending") 2). There are at least 4 legit ways to save Karlach (I'm not talking about wish spell, true res etc), none of them are functional and Larian won't let us try them.
Like a lot of people here said, let us try at least.
And yeah Raz, we got you. You are pleased with what we have now. That doesn't mean that everyone else here has to accept that, it's not your job to prove us otherwise, mate