I found this interesting:
https://www.cbssports.com/college-basketball/news/ncaa-tournament-selection-committee-leader-explains-why-even-easy-wins-matter/
"I had scheduled to come in and watch -- when we set this up before Christmas, and the expectation was six or eight teams in the Big Ten would be candidates for the tournament. I think there's a value in seeing teams in person. You see the physicality and the length. You see how they respond to things that don't go their way, maybe a call. You see a little bit more. You get a feel for the flow of the game and why the game ends up being the way it is.
It gives you a point of reference, too. If I've seen Michigan State in person, when Michigan State's playing Purdue, I've got a benchmark. So physicality, size, speed and so forth. It isn't that you have to see a team in order to get a better feel for them, but if you've seen somebody that they play it gives you a benchmark."