So why not compare Disney to Disney and the metros to... well...
Unless you are saying maybe we should pursue more local governments run by a corporation? That also feels wrong, all told. Though, I would grant I don't have enough perspective there to know.
Part of the pitch to getting the Reedy Creek Act passed, was the plans for E.P.C.O.T. (Experimental Prototype City of Tomorrow) and the plan to build a new urban development. Those plans were complicated after Walt's death and permanently shelved after his brother Roy's retirement in 1968, but Disney retained its exemptions in spite of never truly undertaking the original plan and simply operated a tax-reduced, virtually regulation-free amusement park, until this year.
[1] https://en.wikipedia.org/wiki/Reedy_Creek_Improvement_Act [2] https://web.archive.org/web/20140903204555/http://articles.o...
At the least, it is far more complicated than makes sense, and can't really be used as evidence one way or the other for Florida making good choices.
You probably don't like that it's a private company on private land, but that's irrelevant to the question of decarbonation.