Alignment is one of those core mechanics in AD&D/D&D that people either hate or love. There are numerous long, involved and (needless to say) bitter debates about whether it is good or bad.
I'm not sorry to see it not implemented in BG3 because I'm a gamer who generally plays systems which do not have Alignment, and I'm not a huge fan of it. I would prefer the sort of PC moral code as used in DA, where your dialogue reactions determine what sort of morals you have and display (and thus how others react to you).
Back in the day, Alignment was tied into a lot of spells and magic items, of course, so it took some untangling for subsequent editions to de-emphasise Alignment. It was, consequnetly, unrealistic to expect it to have been removed in those earlier editions.
Last edited by Sadurian; 20/10/20 08:13 PM. Reason: improved the syntax. No idea what I was originally thinking!