The only other context I'll add is for people shipping Flow that I knew at the time they felt that this announcement felt like it came about two years too late. I had already switched to TypeScript long before because, in part, of the things they're apologizing for in that article which were evident long before being said out loud. I say that with great reverence and respect for the people that worked so hard on Flow, by the way, but that's the situation I experienced.