You know good and well why they didn't claim the 4th. They didn't want to make it too obvious (although everyone who isn't a pathetic aggy saw through it anyway) they were trying to keep up with big brother.
The reason it's a "big deal" to claim those titles is that big boy schools don't claim titles "as voted on by Good Housekeeping magazine." For the record, if your daddy, the University of Texas, were as desperate as you dolts, we would have 15 National Championships. That's right 15 - But no worries. You don't have to laugh at yourselves. Everyone else does that for you ;)