Well yes, but I think the point being made is that if you lived in Amsterdam, which is where the flight diverted to, you would be in Holland (Noord-Holland, to be precise).
At the time of the post it was not yet known where the flight was diverting, only that it was heading for The Netherlands. Yes, having lived in the country for 45 years, I know all about the misuse of the name Holland by the vast majority of the world! My post however was not aimed at the OP but at those who (wrongly) believe that "Holland"
is The Netherlands. It's not.