I especially love when people throw out stats such as "first time in 40 years that so and so has beaten a top ten team."
Well, yeah. Top ten teams don't lose very much, which is why they are top ten.
Only a few schools in the nation boast a "good" record against the best teams.
So back to the point. For BYU, a P5 win is a P5 win. And as you can see, same holds for Utah to a degree.