I don't think Miami has been nationality relevant since around 2002. I think they get mentioned because their program has the potential to be up there among the elite.
I guess it just depends on what teams you consider nationally relevant. That's very subjective. Right now, I think Pitt is as relevant as programs like Utah, Baylor, OKST, & Oregon.
I don't know. I'm an in the moment person when it comes to these things. I would say teams like Clemson & Oklahoma are only borderline when it comes to national relevance, and LSU, champs from 2019, out of the conversation for now.