@Capella illustrates a good point about reserving too much conviction over these Oscar awards. People complain about who won what and what deserved to win but we aren't always good at answering that question in real time. It takes 5-10-15 years for these opinions to really crystallize. The Artist for example won Best Picture at almost every major award show and was universally loved. Within a year or 2 of winning, everyone flipped their opinions and it's now often ranked as one of the least deserving winners. American Beauty was something everyone was talking about and seemed to really capture the zeitgeist of 1999-2000. If a 20 year old watches that movie now, they will be like "what the creepy #### is this?" Then you had movies like Citizen Kane, It's a Wonderful Like and basically Hitchcock's entire filmography that were recognized at the time but certainly not pegged as the best movies ever made or anything historic. It was decades later than people came around to them as being truly special.
Not too different than how we and the media just NFL draft classes the day after the draft when things tend to look a lot different 5 years later.