Going back to OP,
I will say one item is that the UCLA and USC pickup is more risky than OU and Texas.
OU and Texas do neighbor SEC programs and Texas has strong rivals in the SEC already (Arkansas and Texas A&M). OU doesn't have as many connections but their are some geographical scenarios that work. The road trips are not so great.
USC and UCLA are two programs that have struggled to fill their stadiums and draw fan support lately due to lack of success. They will face long road trips, and their is major sports competition with College Football in the LA market (more so than with OU and UT who seem to be the chief dogs in their regions).
If UCLA and USC struggle heavily, similar to Nebraska, in the B1G, the B1G may see some loss in value with this deal and both programs may struggle in the B1G. So there is some risk in the deal not being that great long-term. However, in short term it was an amazing deal and the Fox TV Contract will kill it with this new lineup.