You’re misquoting and misreading the statute.
“Any party
or aggrieved or adversely affected person as defined in s.
163.3215(2)” (not “aggravated“) can seek enforcement
If it was limited to “aggrieved or adversely affected person” it would have read ”Any
party or aggrieved or adversely affected person as defined in s.
163.3215(2).”
“Any party” inclusion can be viewed broadly as to include the CFTOD (as successor in interest to the RCID).
I don’t think that’s how this is going to play out. The CFTOD will assert that the contract is null and void and refuse to comply with it. I think it will be Disney/WDPR that, eventually, will seek to enforce the CFTOD’s compliance with the development agreement (likely under this section).