Its taken me years to admit this, but alignment sucks and it actuallly handycaps the story telling, its too rigid, and most don't know gow to RP it well. So I'm okay if they leave it out.
I have mixed feelings on the alignment system like you have said it is rarely done well but a part of my also want them to keep the alignment system but really this is not up to Larian to do so if things go wrong we can blame Wizards for telling Larian to keep the alignment system out of Baldur's Gate 3