“The fact that a driver can see a green panel or flag ahead, does not mean that overtaking can occur in what is still a yellow flag zone. Overtaking can only occur after passing the green panel or flag. It was also noted that he did not make a sufficient reduction in speed.”
Fair enough, I guess.
F1TV went over it in the post-race show at around the 15 minute mark. The panel kept switching between yellow (or white) and green. Super confusing to me.