It is correct to argue about misleading terminology. "AI" contains the word "intelligence", and for instance logistic regression algorithm is not intelligent, while it is clearly ML, since machine learns something. As Machine learning is broader category, it should include Artificial Intelligence, not vice versa.
Also, 'every single course' is perhaps an overstatement - a course that I co-authored tries to get it right from the first principles.
It wasn't misleading for 70 years... How did it become misleading?
You're just making up your own definitions. Have at it, but as you've been told: this stuff is not new.