There's flippancy that crosses social lines, and there's flippancy that blurs technical distinctions. The difference between someone whose mental disorders are under control vs someone experiencing psychosis is like an oncologist handwaving the difference between terminal cancer and cancer in remission. The difference is enormous, to the point that the whole purpose of the psychiatric field is to move people from the one category to the other. I don't think technical experice justifies glossing over that distinction.