I wouldn’t worry about hypotheticals like that. Disney is very aware of legal obligations and how their ROFR works. They literally wrote the contract provision which provides the ROFR and included the language that states you may close if you do not hear from them by closing as long as you gave them at least 30 days to make a decision. A lot of people like to assume Disney is acting in bad faith during the resale process, but really they are doing everything they are supposed to do.
But even if the alternate universe became reality and they did start operating in bad faith, it wouldn’t serve their interest and would work against them. You never want to be a party who has operated in bad faith under a contract and then try to have a provision of the contract enforced in your favor. I’m not a lawyer for Disney, but I will guarantee you their lawyers know that basic contract law maxim.
As to delays with estoppel, I’m inclined to believe the blame there also lies with the closing companies. I think some closing companies unnecessarily delay the process because of when they request estoppel. I think some closing companies are so busy that they are actually working against a swift closing process. If you are with one of those closing companies, you will likely get the spiel that estoppel will come 2-3 weeks after ROFR. If you are with a closing company that provides better service, you will probably receive your closing papers shortly after passing ROFR. I’m not saying certain closing companies are lying about how long estoppel takes (although they very well could be) but I am saying there is a huge difference in the efficiency of your contract processing depending on your closing company. That’s based on my experience with multiple closing companies. With one closing company, I always received my closing papers 2-3 weeks after passing ROFR. With another closing company, like clockwork, the closing papers always show up within 2 days of passing ROFR (to include a contract this summer at the height of the COVID delays). Obviously, that’s anecdotal, but over the years I have seen it play out that way for others on the boards as well.