Really interesting to me that the very first thing they chose to emphasize in the undead video is how one of the most appealing things about undead in D&D is the clarity of “what your job is” as a player… They’re beating around the bush a little, but I feel like what they’re trying to get at is, “here’s a morally unambiguous enemy type that you can always know is ok to kill.” They also mentioned fiends in the same breath, so here’s my government-mandated grumbling about gnolls. But more to the point, I find it fascinating that they’re putting that front and center as a selling point of undead. I wonder if they’re trying to reassure folks who are unhappy about humanoid monsters no longer coming in always-evil.