This post sounds incredibly bitch-made but sure I'll bite I guess.
It's really not that serious. Watching the stream, it was obviously all in good fun for both of them. Raden already expected to get made fun of for smoking and even asked her manager pre-debut if it was okay to talk about.
Hell, she calls herself human trash more than anyone else. Plus, one of the reasons the JP talents love Kiara is exactly because she isn't bound by the nip culture of not being "disrespectful." There've been multiple times where she says something they'd consider shocking and they keep laughing or going along with it anyways.
Not to mention, in that same moment
on stream (27:50 timestamp), Iroha and Mio both go along with Kiara and say that a smoker can't be a princess. Do they deserve flak for being "disrespectful?" Everyone was clearly just having a fun time.
Your "criticism" was you having a retard moment. Accept the migos and enjoy your break