My understanding:
GOR: an agreement between the members and the ACC, with the members granting their individual media rights to the ACC through 2036. This is a separate agreement than any media deal, but brings strength and value to any media deal that the ACC negotiates. GOR is a ~$430M issue for FSU, but valuation could be further debated (and litigated).
ACC and ESPN contract. The contract has a unilateral option by ESPN that it has to exercise in early 2025. It will end in 2027 or 2036 on ESPN’s option.
Exit fee to the ACC: ~$130M issue for FSU, subject to negotiation (up or down, based on departure date)
As the GOR and the ESPN are separate agreements, FSUs effort to tie them may be difficult. We shouldn’t assumed that they are one and the same. One year from today ESPN could announce that they are not optioning through 2036 and the agreement ends in 2027. The ACC still has the GOR and can secure an alternate deal with FOX or anyone else, and still has the strength of its ACC network.
It seems to me that FSUs actions now undermine the value of the ACC and its members. The GOR protects the value of the ACC from FSUs actions. This the the purpose of the GOR.
The ESPN contract option does not seem to be the magic loophole. It will still come down to the GOR being legally enforceable (iron clad?), and if the sides want to agree to settle an exit (maybe $130M + $215M) or let the courts decide.