I dont think its about college finances. At least, not in the long run. In fact, I think it changes the actual market structure. My macro view on this is there is a depressed (in fact I would argue actively suppressed) market for football talent. This is a factor of express or tacit collusion between NFL, NCAA, and state & federal regulators.
And yes, I would not be surprised in the least if programs can no longer compete and there is a massive restructuring in the college football landscape (college athletics overall).
So be it. Removing artificial and unjust barriers to individuals opportunity to be compensated fully for their skills and talents is more important. And I would add uniquely talented both in terms of physical abilities but also the time frame within which they can maximize their earnings.
NIL is one step towards establishing a more accurate market for football talent. We may see it evolve into a club system for the NFL - which is essentially what it is now - its just the most talented aren't able to fully capitalize on their value (due to lack of market). Scholarships are essentially a de facto salary cap.
To comment on your question directly about whether it benefits Miami or not. As others have stated, probably too early to tell. Many variables. And depends on your time horizon for success for failure. One fundamental force I think is favorable is its relative market size in terms of media, consumers, economic health, etc. It is also one of the most attractive locales to live.
This will also, I suspect, ultimately differentiate between the top 5 star talent but also less heralded recruits. What markets would I bet on that is best able to offer both top talent but also the 3 and 4 star recruits, support for their NIL? Again, I keep coming back to those markets that have size and diversity in their economies.
What Im most interested in is seeing the impact and changes in college coaching and specifically college football back offices.