I agree. Some things like naming patterns SHOULD be different from the Federation Starfleet. I liked NX-class. Even if they went with a name, they would've named the class after its prototype, not a captain.
I do wish they'd come up with some class name for the Intrepid. Maybe NS or NC. Maybe not even something starting with an N.
It's not that I had a real heartache with it. But being a 30 year Navy guy I know how ships are numbered. It's just a little off to have an entire class as "experimental".
I agree, Enterprise and the NX-01 touched base with real NASA more than any other series.
Who said the entire class was experimental? I think you may be confusing "NX", which is the class name that Earth starships Enterprise and Columbia belonged to, and "NX", which is the registry prefix given to class prototypes by the Federation Starfleet.
NX was the prefix for the Excelsior (NX-2000) in ST:III, before it changed to NCC-2000 by ST:VI.