I don't care much for the inconsistencies Sceleritas may have brought with his comment, but I do think the evil endings are clearly phoned in and written without any interest in them, just trying to get them out of the way. It makes me wonder if the general ending was so bad not because they were running out of time and resources but because they just didn't care about the game anymore and wanted to get it over with. But some of the cinematics I've seen for the evil endings also look kind of bad and rushed so idk maybe it's because they only have a small team working on BG3 now.