Green Book is tricky. I actually really like it, and think it's a damn good movie. It's a little cookie-cutter, sure, but it's very well done. The "controversy" is the race stuff, which I get, but it's also way overblown. A lot of people take offense to the idea of the white guy teaching the black guy how to eat fried chicken, etc. It's one stereotype teaching this other guy how to be another stereotype, which is "problematic" according to some, but I'm also of the mind that that's kind of the point, but whatever. I see both sides on this one. Bottom line, it's a good movie with some issues. I don't think it deserved Best Picture, but I wouldn't call it a travesty or anything.
And yeah, Moonlight totally felt overly reactionary, like the pendulum swung too far too fast in the other direction. I enjoyed it, and thought it was good, but La La Land was fantastic, and everything you want a Best Picture winner to be.
Do you listen to Bill Simmons on The Ringer? He and a couple of those guys have started redoing each of the Oscars five years after the fact. He has the same philosophy - that we can't really judge until we've had the proper time away for history to help decide. They recently redid 2014, I think it was, and it was fascinating how different it would be now with what has aged well and what hasn't.
