I'm probably late to the game, but just realized that if either UCLA/SC or Texas/USC were swapped, we'd have the possibility, on chalk, that the finals could have been either all B10 or all SEC.
If coaches decide to go public with their displeasure, it impacts the team, becomes the media circus topic, etc etc. IMO that's why Geno has said in public, we go where we're told to go. Many years ago, he was irate at seeding, probably the infamous #2 seed in 1998 when Stanford got the #1 seed, and he's also called out the committee a few other times.