What the fuck are you on about, R110? Not a single point you attempted is valid.
Clearly actors watched the films if they nominated Plemons and Kotsur. Smit-McPhee was the frontrunner for nearly all of Oscar season up until the nominations came out. Plemons wasn't even in the conversation. So clearly the actors branch of the Academy saw something in his performance that they singled him out. And they clearly didn't see anything in Matlin's (rightly so).
Several films nominated for Best Picture do not have a corresponding Directing nomination, and films have previously won Best Picture without their directors being nominated. And with the category opened to 10 films instead of five, it's going to happen more often. Coda won for one reason and one reason only- People like to feel good about themselves in Hollywood. They like to show how liberal and forward thinking they are (with the least effort possible). This was Hollywood's way of saying- Look how diverse we are! See, we're not all selfish monsters! Meanwhile the film was execrable and Troy Kotsur was not even deserving of a nomination, let alone an award. Not that The Power of the Dog was any great shakes, and this was one of the worst years for film ever, but POTD had some artistry to it. It's a film that you could understand winning Best Picture. Anyone could have made Coda. And anyone did.
Many films have won several technical awards without a corresponding directing nomination. What Dune did is not unheard of at all. The Matrix won four Oscars, every one it was nominated for. Terminator 2 also won 4 technical awards (nominated for 6, none above the line). Memoirs of a Geisha was also nominated for 6 technical awards, winning three. Roger Rabbit won 4 Oscars, including Editing. And there are others. None of which were nominated for Picture or Director.
You have no idea how nominations for Oscars are selected.
Had you said that no one watches the documentaries, foreign films, or any of the short films, I'd be right there with you- ONCE they are selected for nominations, that is. There are actual committees for those categories who volunteer to watch all the films submitted and vote on their inclusion for nominations. But once they make that final five... A tiny percentage of voters actually watches them. I am a voter and I can tell you I rarely watch any of the short films. I just don't care. Do I vote for them? Sometimes, yes. If I know the person involved I'll take a look at their film, but not all of them. And I know this is the practice of many other voters, just as I know some voters give their ballots to their wives or kids to fill out, some only vote politically/strategically, some even do their own version of throwing a dart at the category.
And you can take this to the bank- the short with the most intriguing title almost always wins. If you see a short nominated with a goofy title, predict it. People just check off that title on their ballot without watching. No one has time to watch these things.