Whenever I see a thread saying, "I think X core part of D&D's traditional rules should be changed", I think, "yeah, wouldn't that be nice", but then quickly remember how much outrage a significant part of this community has had in response to some extremely minor changes that WotC has made to the rules in new books/errata (giving Goblinoids Fey Ancestry, removing alignment suggestions from PC races, changing Vistani lore to be less racist, etc).
Yeah, there are changes to sacred cows of D&D that I wish would change. However, if we as a community can't handle changes to books that won't affect your games in any way . . . we're never going to dump any of the dozens of useless/detrimental sacred cows that the game has.