so OPs original question remains: why is it called "AI", when it plainly is not?
Because a bunch of professors defined it like that 70 years ago, before the AI winter set in. Why is that so hard to grasp? Not everything is a conspiracy.
I had a class at uni called AI, and no one thought we were gonna be learning how to make thinking machines. In fact, compared to most of the stuff we did learn to make then, modern AI looks godlike.
Honestly you all sound like the people that snidely complain how it's called "global warming" when it's freezing outside.
These arguments are so overly tired and so cyclic that AI researchers coined a name for them decades ago - the AI effect. Or succinctly just: "AI is whatever hasn't been done yet."