ticket info might be dated as well.

For example, this site says this:
"The Big 12 Football Championship is the only conference championship game that guarantees a match-up featuring the league’s top two teams. No other conference champion has a more challenging path to the College Football Playoff. The Big 12 is the only FBS conference where every team plays one another.'

So that makes me wonder if the info on there about them only allotting 7,000 tickets per school is also dated info.

I just called the BYU ticket office and they have zero information. They don't know how many tickets they will be getting.