Throughout its investigation, the NCAA, and those on its side, providing it information, did a great job of winning the PR war against Michigan football, which was important, because when it comes down to it, the NCAA doesn't have a ton of actual, reliable evidence.
The NCAA cited two witnesses in its 79-page report that alleged there was "overwhelming evidence" of impermissible scouting.
The NCAA mostly has evidence of Connor Stalions purchasing tickets and the idea that Stalions wouldn't have taken those steps if it wasn't an advantage. If the NCAA has videos that were given to Stalions that are so damaging, it should make them all public.