For a hobby that's been in media crosshairs since the beginning, I can't really fault whatever entity owns D&D for doing what they have to do to ward off the lawyers. Filing the serial numbers off demons and devils hardly hurt the game, and dispensing with alignment is actually a huge improvement. I can see how it might be problematic to be perceived as teaching kids that any given humanoid subspecies is fundamentally evil. That idea could cause serious trouble if extrapolated to, like, reality.
Of course then we may or may not have to wrestle with the morality of killing sapient beings in a game where the entire point is to kill things with swords. I generally avoid this in my campaign setting by depriving the bad guys of free will and small offspring. Conversely my most recent 5e GM, with whom I have gamed off and on for thirty years, loves to pose ethical dilemmas to his players. Sometimes it's interesting, sometimes I just wanna murderhobo. Mileage varies.