No, you are NOT telling anyone why they didn't. They didn't do it Freshman year. It seem you are finally in agreement on that point. Earlier you claimed they did (run under 28:30 Freshman year).
Answer the question: If these guys could have, and NP Seniors could now, go under the US HS record, what was stopping them from 28:30 as NCAA Freshmen? It seems you agree they didn't. Why not?
Hint: I already told you why not. They couldn't!
I never claimed they ran sub 28:30. I said they ran sub 28:30 in all their 10000m. And that explains why they didn't run sub 28:30....