Clearly it would still be relevant to someone who is raised a Tennessee fan. That is not in dispute, unfortunately we need to recruit a lot of people who aren't raised Tennessee fans. Serious question here, just the academic question, at what point do you think college football history becomes irrelevant to recruits not naturally partisan by virtue of having been brought up in the fandom? Princeton claims 28 national championships, Yale claims 27, Minnesota 7 (4 of them AP national championships), Missouri themselves were 4th in wins in the 1960's. We were 4th in wins in the 1990's, other than that, our best decade since 1960 was the 1980's when we had the 20th most wins. At what point do you think past success becomes ancient history to those recruits? I'm just saying, some people are constantly scratching their heads about why a recruit would consider Missouri or South Carolina in the same breath as us, and the fact is that there is not being much separation between us and those programs in these kids lifetimes. I think that is a hell of a lot better answer than for example, thinking Heupel can't recruit. I think he's done a good job recruiting under the circumstances.
I think those same teenagers I mentioned before, they're aware of Nebraska's proud history, and Notre Dame's. Miami's. Florida State's. So not just the school they grew up fans of. To a lesser degree, all the great programs of the modern era.
Now, they probably don't know much of anything about Army or Minnesota, much less Yale or Princeton.
So, something more than 40 years back, but less than 80, would be in the public consciousness.
Put that another way: youth (esp. pre-teens) pay attention to and gain perspective from their parents, aunts, uncles, grandparents, and great-grandparents. The more time they spend with them, the more they gather. So it's really a function of the living memory of one's close family members.
break/break
Recruiting is a different matter. Recruits can know ALL about every FBS program's history, and are still going to pick the school that (a) gives them best NIL $$$, (b) gives them the best path to the NFL, (c) has the coaches they respect most (d) has the right fit and feel to them, and (e) other considerations. History doesn't play into that so much, except for fellas like Jack Jones and (d).
Your point was, recruits and other young people "don't see us this way" (as a championship program, well beyond the likes of Mizzou). I think they most certainly do, when raised as football fans.
Go Vols!