Consider the most recent BYU game and Vegas line. Something like 70% of bets were on BYU to beat the spread. If you're looking at games and comparing the number of wagers, it was one of the most unbalanced games in the country.
The money was close to even though. And that's because there were lots of big bets on UCF. But the massive number of people betting on BYU (compared to their opponents) doesn't seem to argue that
"They draw a lot of heat from emotion bettors who are vested in BYU and XII being bad.
And there is no counterweight because so few BYU fans wager"
There's literally massively more people betting on BYU than on our opponents