They would not in any way, shape, or form allow me to take title in the name of an LLC so I conceded the issue. A bit different from your facts - I was looking to take title in the name of an LLC itself, not a trust with a corporate trustee. It sounds like another difference is that I bought direct and it sounds like you may be using a title company or DIY, which suggests resale. Disney prepares the deed when you buy direct, so, in that case, they absolutely can control how the deed is prepared. With respect to resale, without doing a ton of research into it, I would guess that if ROFR materials identified an LLC as the prospective buyer, and Disney issued the estoppel letter, unless there was something specific in the rules that prohibited LLC ownership that they could point to (which I don't think there is, but someone here probably does), they may not have a choice but to permit the buyer to take title in the name of the LLC. However, if ROFR materials were submitted with an individual identified as the buyer (which they commonly are), I think Disney would be well within their rights to reject a deed titled in the name of an LLC. All of this is speculation; none of this is actual legal advice.
I wish they would understand that not all LLCs are businesses. Sometimes, people like me just want the anonymity and asset protection that a Delaware LLC is better at providing versus a trust. And, frankly, I could easily structure an entire business enterprise still without taking title in the name of an LLC. Businesses who stand to make a lot of money hire people like me to do just that. So, I'm not sure Disney is necessarily accomplishing its goal of restricting commercial ownership, at least in a material way, simply by refusing title in the name of an LLC. It's one of those things that sounds good on paper and at annual meetings that actually does (or at least should do) very little in practice.