I"m not an attorney, but I can ask That Park Place's legal analyst (a Florida attorney) if there is a statute regarding nuclear power plant ownership. Clearly that's different than other electric utilities, which I'm assuming you did not mean to conflate.
Much of Osceola WDW property isn't covered by RCID, such as Celebration. Is that what you're referring to? RCID and WDW aren't synonymous... the attorney was likely referring to RCID not WDW in regards to taxation in Osceola.
I try not to be too critical of people who assist me and others. He was very kind to answer some of our particular questions we had about bonds related to RCID.
1. I think he's talking about it being special because the legislature had a special session for it and granted unique authorities.
2. Reedy Creek has safety standards set by Reedy Creek (is my understanding). Again, I'm not a lawyer, but I know of no other special district which gets to set its own safety regulations/standards.
3. Disney isn't the largest "landholder" in RCID... its subsidiaries are the ONLY "landholder" in RCID (one exception might be Swan and Dolphin... I'd need to double check the contract). However, Disney doesn't have standing because RCID is governed and controled by two municipalities that are supposed to be wholly separate from Disney - Bay Lake and Lake Buena Vista. While Disney could claim a Citizens United 1A greviance, that's a harder path than RCID going to through the state courts. There's more detail
here.
4. I've talked with another Florida attorney who verifies that the bond debt would go to Bay Lake and Lake Buena Vista as they are the controlling government entity.
5. Lake Buena Vista and Bay Lake residents would take on the bond liabilities according to every Florida attorney I've spoken to, regardless of what the mainstream news is trying to say.