Just guesswork and opinion:
I think Sankey (SEC) sees that the long term solution is one TV deal for CFB with several broadcasters and streamers. Just like all the pro sports deals. To get there, everyone has to agree to the same basic payout for the regular season. Post season revenue goes to the individual teams/conference if some form of split where winners get rewarded, just like the pros.
Petitti (B1G) sees only revenue dollars in the short term without regard to actual costs and long term effects (I.e. Lost revenue long term, e partnerships only interested in return, etc.)
I have no clue what Phillips sees for the ACC.
The Big 12 commissioner thinks too much like Pretitti.
Regardless, a minimum number of teams greater than the SEC and B1G is necessary to pull this off. The number is likely between 64 and 96, multiples of 8. Yes, ND must join a conference. This number would allow conference realignment back to regions, the way college football is most fun. The number must be large enough to cover most of the viewing audience and not be NFL lite, which is why less than 64 teams likely does not work. Further, keeping sufficient teams in the top tier keeps Congress from too much meddling.
Until the above can be attained, the powers that be will do everything they can to maximise their revenue and minimize opponents’ revenue.
How do we get from point A to Z, you ask? I haven’t a clue since there are too many “geniuses” trying to raise immediate revenue at the cost of future revenue. Yes, FSU and B1G, you are the prime movers. Even the SEC looked into this and concluded PE money was not a viable revenue stream - which says a lot about all the other schools who are allegedly more intellectual than the SEC schools. Hopefully, everyone takes a step back from the ledge and observes how the pros handle the TV deals and agrees to work together. However, when Petitti can throw a fit because the SEC does not want 24 teams in the playoffs and a guaranteed 6 from the B1G, little can be done until the B1G commissioner grows up.