Think bigger picture, Brooke. Not just the 150 people involved in one game, but all the travelling, eating, potential sightseeing, entertainment, eventual parties (college students after all), etc. Playing a football season does not help slow the spread; which should be the goal of all citizens and the government.
Football players are minuscule contributors compared to the number of people doing all of those things who aren't football players. College football players are 1/10,000th of the population. They'd have to be 1000 times more likely to catch and spread SARS-2 than average people in order to budge any averages.
Also players in active football programs might get and spread SARS-2 less than if they aren't in football programs. When they are in the football program, they are tested frequently, isolated when sick, more isolated from non-football population at all times, and subject to much pressure to be careful about SARS-2 infection. When they aren't in the football program, they are back to being regular college students -- and regular college students are not that careful.
In addition, yes, folks need to look at the whole picture. Decisions can't be made looking at one number: likelihood of spreading SARS-2. Pursuing lower SARS-2 infections has drawbacks in other areas that need to be considered.
It's the same with automobile deaths. You can't look at only that, or you conclude that it is best to outlaw all cars, trucks, and driving. Doing that would reduce automobile deaths, but other problems (including some other forms of death) would rise, making it a bad choice.
It might be better for players to be in football. They might be safer from SARS-2. Also, not playing football might have very bad and severe consequences to chosen career path for some of them. Or maybe not. But no one -- not you or me or any government official or any scientist -- knows which is best.
People should be able to decide for themselves in such cases.