That is one of the most absurd statements I have ever heard. OSU is a significant athletic program. They would have no problem getting into a major conference. I would be surprised if Joe C and Boren would want to go to a conference without their cross state rival.
There is not a scenario short of OU shutting down their football program that would force them to go to the Mountain West or Conference USA.
If you accept that it is money (more particularly, greed) that is driving these proposed changes, then is it that far fetched to think that factors like revenue potential etc. will determine who gets invited? I'm not disparaging oSu as a program, and I would hope that we would keep playing them, but you are already seeing AD's like Barry Alvarez at Wisconsin popping off about the "split" that potential new members of the Big 10 should expect because he doesn't want schools like Wisconsin to be footing the bill for the new schools (more schools = less money UNLESS said new school adds value).
OU brings way more to the table than oSu with respect to being a "sports property" that can add value to a conference. That is just my opinion, but I think it is a reasonable one. These new "super conferences" are not being discussed because these conferences care about maintaining rivalries, they are being discussed so as to maximize revenue for the member schools. OU is a value added member to every conference in the country and is a reasonable academic fit with them as well. Sure oSu is competitive in several sports, but it isn't just about sports anymore...and when the AD at Florida (or any other AD in a "super conference") is asking the tough questions about $$$ a program will generate for the conference, I'm not sure that oSu would be seen as an attractive property.
You may think that my concern is "absurd", I do not..and if for whatever reason my concerns prove out, I do not want OU to be hamstrung in doing what is best for OU. Let me ask you this, what makes oSu more attractive than say, Texas Tech to a "super conference"? I can't think of anything, yet nobody on here ever mentions Tech as being asked to join the SEC or Pac-10 should the Big 12 dissolve. These conferences are already saddled with the Washington State's and Mississippi State's of the world...they are not looking to add more programs that the "name" schools are subsidizing. Perfect case, oSu comes with us, but we need to be prepared as a University to let them go if it is expedient.