The lack of a host was a good idea. Instead of the host coming on for irrelevant "humourous" bits that extended the show, they kept everything moving; it was the tightest Oscar telecast in years, and that was after they allowed the Best Actor/Actress winners ramble on for far more time than usual (I think they were worrying that they might finish too early). I only saw a handful of the films, so I can't comment on Green Book, but I can see the objections. In a year where cultural representation was big,* it's surprising the Academy was willing to go for it. Still, most of the other films had their "flaws," while Green Book worked as a well-made film with a message, something the Academy has always loved. It's also due to a flaw in the voting method. The Academy uses a simple plurality of votes. When you have eight films, that means a film could theoretically win with only 13% of the vote. If it gets 25%, it's a shoo-in. But that means 75% of the voters thought another film was better. So it's quite likely a majority of the academy understood the issues with Green Book, but the minority that didn't were enough to vote it in. Here are the "flaws" that voters might have caused them to vote for Green Book (Note: I am not necessarily agreeing with these, just showing the thinking involved) “Black Panther” -- superhero film “BlacKkKlansman” -- Spike Lee is something of a polarizing figure. “Bohemian Rhapsody” -- Queen and Freddy Mercury don't mean much to many in the academy. Mercury's sexuality also might be an issue. “The Favourite” -- too bawdy “Green Book” “Roma” -- isn't based on a strong plot (silly reason) and isn't in English. IIRC, no foreign language film has ever won. “A Star Is Born” -- The third remake of the story. I don't think a remake has ever won. “Vice” -- too political (and events were too recent). Remember, it doesn't take a lot of voters to be turned off to a film for any of these reasons. I think that Green Book will go into history as a bad choice, but then, some movies people think were bad choices were really quite good ones. *It was the main reason that Black Panther was so well regarded. I think it's great that there was a Black superhero and the way the characters were portrayed (when they were portrayed as anything other than punching machines) was a step forward, but the story was as cliched and predictable as any other superhero film (if you wonder why Oscar doesn't like them, it's because they all have the same plot). It's the Jackie Robinson of superhero films -- if Jackie Robinson couldn't hit above the Mendoza line.