Kani, BG3 has had a glowing reception and is posting some exceptional Steam figures. Chances are highly likely that it is a success. I get that it isn’t your cup of tea, but it really just seems like you want this game to have failed, and I don’t get why.
I'll tell you why. Because he doesn't want Larian to make any other D&D games, specifically FR games, and he is terrifed, that because of this enormous success, they will be tempted to do so (even if Swen hinted, they probably won't, which was before those crazy Steam numbers appeared). And even if they do make another FR game, he is afraid that this will be enough for WoTC, and they won't be eager to allow any other studio to develop another FR game, thus locking him out to play on his beloved setting.
So yeah, he is very eager for them to fail with BG3, because of that.
I think at this point we can safely say, BG3 is a success, no matter which "Change reality" spells he casts.