I think your argument starts drifting across lanes a little bit into how much deeper the talent pool is; which is factual of course but kind of separate.
Nolan Ryan is being used here, by me at least, for a lack of being able to rattle off 20-30 pitchers from that era that were studs, threw hard, and were not babied. I mean guys like Jim Palmer, Jim Carlton, Tom Seaver…they aren’t throwing 87moh fastballs, are they?