Most of this didn't really surprise me, watching Kanye as a freshman in HS rise to where he is now. Just a few quick thoughts:
1) Fame didn't change Kanye. Kanye's always been the same person. I don't think he would've changed much with his mother still alive. He'd probably be the same person. Maybe some of the outbursts wouldn't have happened, idk. Perhaps he marries Alexis? IDK.
2) Wish we got footage of Kanye's time working with some of the other important people in his career like Plain Pat, Don C, Rhymefest, Devo, Common, Hoffa... even Consequence, GLC, Twista, John Legend....
3) Kanye's first three albums has a lot of elements of gospel rap. It was just more disciplined back then than it has been the past few albums. We see elements of that collectivism (choir, Miri Ben Ari, equivalents) in his recent music, but it would be real cool to get that old feeling back.
4) After watching this, seeing Kanye fall out with guys like Common & John Legend are sad. Really John Legend because Ye birthed his career and is the reason he got into politics and the other avenues he's reaching now. It's very sad. Unfortunately, I don't think that relationship is repairable anymore.
5) The Roc was in a weird spot at that time because of the Dame/Jay tensions. Both supported him, but in very different manners. Regardless, Ye's smartest move was to stay with Hov and effectively work with some of the same people that ignored him at first, but helped him out as he became a worldwide icon.