I disagree that SMU got screwed on their seed. Despite their rankings, their non-conference schedule was anything but top notch, and they lost to a couple of tournament teams, and had a bad loss to a non- tournament team.
Some of that wasn't their fault. Some of the teams on their schedule could have been good out of conference wins, but they ended up not having good seasons.
They beat Gardner-Webb, Eastern Michigan, UCSB, CSU-Bakersfield (barely), Delaware St., McNeese St. and Albany. None of those wins does anything for you.
They beat Pitt, TCU and Stanford as their three best OOC wins.
They lost to USC, Michigan by 24, and Boise St.
I don't think they got screwed at all. That's a fairly weak overall OOC schedule. They should take a page from Geno's OOC scheduling. He doesn't have to, but in order to quiet the critics who would say he sails through a weak conference schedule and plays nobody OOC, he takes on anybody and everybody from the top 10 willing to play us. SMU is going to rack up a lot of conference W's. They need to schedule at least two or three perennial elite teams every season OOC. They didn't this season and it's reflected in their seed.
Where I'd argue they got screwed is they could face USC right out of the gate, a team they lost to during the regular season. That could be seen as disrespect from the committee.