I read a pretty convincing article title and subheading implying that the best use for so called "AI" would be to replace all corporate CEOs with it.

I didn't read the article but given how I've seen most CEOs behave it would probably be trivial to automate their behavior. Pursue short term profit boosts with no eye to the long term, cut workers and/or pay and/or benefits at every opportunity, attempt to deny unionization to the employees, tell the board and shareholders that everything is great, tell the employees that everything sucks, ...