Funny but most of us prefer sure things. Blowouts haven't stopped the UConn women from having a national audience. People who didn't play golf started following Tiger Woods. Remember when The Cowboys were Americas team? For decades the Yankees were the team for most of the nation including areas which had their own team.
Bandwagon fans tune in to sporting event to be entertained. And these fans don't get entertained losing or stressing out game after game. Even in this forum which is populated predominately with obsessed dedicated fans your postulation has holes. Take a poll. Which game would people in this forum prefer watching again - the competitive Butler championship game or this past season's NCAA tournament game against Illinois? Which viewing experience gives them more satisfaction? Not the result. But the viewing experience. Take another poll. Who in this forum would like to stomp Duke, Providence or Syracuse every game versus eke out a win game after game.
Sports fans without an allegiance to any one team don't align with your point of view. And the majority of fans are bandwagon fans. If the UConn mens bb team keeps winning championships more and more unaffiliated fans will become UConn fans. And they would prefer that we dominate every game.
So getting back to NIL. I maintain that the transferring out of players in football, even taking place among the current stronger programs, will have a huge negative impact to teams including these stronger programs. They will have to spend a lot of money to keep their best players from being poached and although they have more funding paying those top players will eat up those funds quickly. They will struggle to go two deep with superior players. A few injuries which currently doesn't impact them will in the future. So I disagree with you and am predicting football parity. The second point I disagree with is that this outcome will translate to more close games, not less. And the third thing I disagree with you is that the nationwide viewership for college football will decrease as a result. As a UConn fan I would love to see the college football power base take a big hit.