You're (somewhat abrasively) stating a version of my own opinion as well, but the "real threat" you mention, is very real. While "AI" (really, machine learning) is not good at most things, it does appear to be very, very good at convincing people it is good at them (for whatever reason). The threat of it being put in charge of things when it has (quite literally) no idea what it is doing, is not a small threat.
