Not sure he can pressure Pac12 or Big12. Whether SDSU joins a P5 conference is entirely up to TV partners.
I doubt existing Pac12 or Big12 schools are willing to give up money to add new members. And even if SDSU, SMU, etc
are willing to join at a heavily discounted share in 2024, do they hurt per school distribution in 2030?
A 10 team Pac12 and 12 team Big12 are very viable between now and 2030.
SDSU can’t exert much pressure beyond fueling fan speculation. There’s no down side to it, but that’s all this is.
The PAC’s viability entirely depends on what kind of deal they can get. As of now, we only have reports and rumors, and the absence of a deal being presented to members is as good of an indication as any that the offers they have not on par with the deal the B12 got.
The PAC might get backed into a corner where they have to take whatever deal that’s in front of them. If it’s August and nobody’s jumped but they don’t have a deal, I’d assume the status quo sticks for however long their deal is and schools have decided just to deal with it.
However, I have a hunch anyone who knows they have an escape hatch to the B12 knows the date where they either have a PAC deal in place or their packing their bags for 2024.