I don't think you're off base. I fully recognize the value of control for Disney, both back in the sixties and today. Given the hostility demonstrated by the state for the last year plus, I also can't necessarily fault them for their contract with the outgoing RCID board. It was a smart business move, really.
I think the only "benefit" to dissolving RCID today is the "level playing field" argument, which is not necessarily a strong argument to make, as Universal enjoys similar benefits to Disney. If we were to have a serious conversation as a state, outside of the political retaliation of it all, about the "level playing field," I think the only true way to accomplish that would be to remove each and every special privilege for Disney and Universal. Of course, that has not been done as of this post, as the state's ire has been solely targeted at Disney, and as a means to retaliate, rather than with altruistic intentions of "leveling the playing field."
It begs the question, if examining the issue with altruistic (and non-retaliatory) intentions, however, why shouldn't some of the state's biggest economic powerhouses enjoy some special privileges as an acknowledgement of their contribution to the economy? After all, if not for the Orlando tourism industry, Floridians would likely be subject to a state income tax; the beaches alone wouldn't cut it. Though I never worked directly with RCID during my career with Disney, I never saw one instance of corruption or malfeasance during my tenure of several decades. In other words, if it 'aint broke, don't fix it.
The only thing that I would like to see change from the original arrangement is some oversight outside of the Disney sphere, whether that be state appointees or county appointees. I use this example a lot, so forgive me if you've heard this before, but it annoys me to no end; Disney should have had to pay for their Disney Springs parking garages out of their own enormous coffers. Instead, they pawned off the project to RCID to pay for. Of course, Disney is paying for them through their tax bill, but it was ultimately constructed with public, tax-free funds. A board with both landowner-elected and government-appointed members would be able to tell Disney to pay for their own garages.