That's probably the closest but it's not AI related. They just tweaked how often certain posts appeared based on the smileys attached to it, which doesn't involve AI or even statistics really.

Also, even if you consider the experiment unethical, it boosted as many people's exposure to positive emotions as to negative, so it's hard to claim that this is an attempt to create psychological harm. Any law that outlawed this would presumably outlaw all of psychology. And finally, it's a psych study. Is it right? Would it replicate? Who knows, by design it's not replicable. It would be bad policymaking to impose draconian laws on an entire continent based on a single questionable psych study that doesn't even have much to do with AI in the first place.

Under this proposed regulation, it doesn't have to be AI. "machine learning, logic/knowledge, statistics", as long as the goal is on the list of bad stuff in the regulation.