First of all, only 43 teams have kept their opponents to under 4 yards per carry (ironically, we are one of them). So you're flat out wrong.
http://www.teamrankings.com/college-football/stat/opponent-yards-per-rush-attempt
Secondly, taking out the goal-line stand rushes are not the same as the longest rush, because the longest rush doesn't happen with 11 in the box and almost no pass threat.
Enjoy...
I have no idea what your point is. Ave ypc as it pertains to a teams rushing defense is an average for the season and I'm not sure how it would prove a specific teams ave ypc. So 1/3 of FBS teams let up more than 4 ypc, but how are those numbers calculated? If 40 teams played the same team #1 with a 2 ypc and team #2 with 6 ypc ave then of course they would all be at 4 ypc with rushing defense, but team #1 would still have a 2 ypc ave regarldess of what a teams gross ypc rush defense is.
And what goalline stand rushes are you talking about? Not once did they line up in a tight jumbo formation inside the 5 yard line which means there was never a "11 man in the box" opportunity for Temple. In fact there was just one play inside the 10 in which they had less than 2 WR's split out and they threw the ball. So maybe in theory your argument would make sense, but as it pertains to UConn and their game versus Temple it does not.