People are confusing the issues around rankings.
It is true that all else being equal, a kid committed to Miami who isn’t in play for other programs will get somewhat underrated, particularly at the top end of the rankings. There is an obvious reason for this. The various regional guys have to fight over who gets the top spots. Their bread is buttered by bigger fan bases. There is no reason for them to fight for a kid committed to UM. Why bother.
That said, Pope was a 5*. So was Lingard. And they were relatively early commits. They had the measurables, proved it on the camp circuit, and Richt commanded respect. That last point is lost in this discussion. When a coach had cred, his kids get more benefit of the doubt. Manny isn’t proven yet as an evaluator or recruiter. That plays in here too. [More reason to dismiss the Jordan shoulda been a 5* theory - we got two 5* kids in that very class.]
5* kids are ultimately kids Alabama would like to sign. Kids the top recruiting schools all want. OSU, UGA, Clemson. Kids who are generally prototypes, high ceilings, NFL futures.
None of this should matter to us. If we evaluate well, we will be fine. If we win, and start sending more kids in the top 2 rounds of the draft, our kids will get rated higher. Ater 17 years of mediocrity, we should not be whining about Rivals.