Why? I don't really see people complaining about the message or the values of the story, merely the craft or the execution, which seems fair game.
Though personally I'm liking it all, with one issue -- we've now had two LOL moments of comic slapstick violence for Rios in this story. I find it such a bizarre choice to include multiple Homer-Simpson-style pain & injury moments in a story that is about so much real pain & violence.
Isn't the black & white aliens episode mostly famous today for a clunky, overdone script?
I think maybe they should have stuck with one social issue instead of trying to cram 3 of them in at the same time. Especially since it's hard to do even one of them justice when so much of the episodes is going to be delegated to the pew pew pew and action beats , mystery box twists and then you got the character stuff with Picard.
You know I think one of the reasons maybe past Trek could handle this stuff better is because TNG wouldn't put so much focus and time on the pew pew pew and the action beats. Hell TNG could barely muster a half decent action scene if it wanted most of the time. That allowed them to focus on exploring the characters and the human condition better I would say.