FWIW, very little, here's my take.
In selecting a school college athletes have lots of factors to consider. Which school they think will develop them best, which school will give them the best education and networking opportunities, immediate playing time, coaches and players they feel most comfortable with, which campus and city they like, which program they believe can be super successful, I'm sure I am missing some other factors, but last but definitely not least is compensation.
In the case of Moore I suspect that Oregon checked enough of the boxes that he feels comfortable going there, and weighing everything the superior compensation package tilted the scales.
I think if most of us were in a similar situation, we would explore our options. The money is not chump change. An NFL salary is the objective, but is not a certainty.
Salary caps are in the interests of schools to save money and could help schools with smaller budgets. Salary caps are bad for athletes trying to maximize their compensation. If Texas is really the Jones's then salary caps will not be in our best interests. I have mixed feelings. Like it or not being a top College football program has gotten very expensive, and those costs are likely to increase over the coming years.
We will be more then fine at reciever. I expect Texas to make whatever changes are necessary to stay competitive in recruiting.