Correction: You could have played it for an hour and got more accurate points. You don't really have any idea of how far Yahtzee would have gotten in an hour, nor of how much he could have gleaned from cutscenes he clearly did not like and wouldn't have given his undivided attention (then again, he could have given his undivided attention to them. I don't know what he did either, and I don't pretend to.)
I used an extreme example. I'm pretty sure he played it for more than an hour. But my point is: Why review something you have no knowledge about? Yes, I have no idea how far he got, but if he even looked at it properly (i.e. more than five minutes) he would have realized that some of his statemens are not quite correct, to say the least.
His reviews tend to be about his experience playing the game. Looking up the summary on wikipedia doesn't give you any experience with the game. The only review I can think of where he definitely used something other than the game of the week was his Turok review.
Correct, it doesn't give gameplay experience. He sometimes just watches cutscenes from games, because he can't play them all the way through (I think he did that with Resident Evil 1-3). If he did that, he could have mocked the Deus ex Machina near the end. He could even play the game for one hour to give himself an idea, then just watch the cutscenes somewhere. It is less work for him, because he hates JRPGs so much and he knew everything there is to know, thus giving him more time to "play other, less horrible games".
The micromanagement could well just be a matter of opinion. You could be used to such things, and he is not. Like desensitisation.
It could be... but it isn't because it is no micromanagement. I'm not used to micromanage every little thing and it would definitely annoy me, too. (cough Starcraft cough)
But to call it micromanagement isn't going the extra mile, it's going to the moon, so to speak. I was upgrading my squad after every mission (which you don't even have to) and it took me about five minutes. Yes, you can custumize your tank and crap like that, but why do it? The important things don't take much time, and some are not even neccesary.