As you say, it's far more complicated then that. Although stock price is not directly related to revenue, stock price can affect the ability to secure loans and financing which could affect Disney's ability to create new rides and other guest attractants (not to mention build IP and content). Disney is not so big that they can self-finance everything they want to do or that unfavorable loan conditions would not drag on the company's bottom line.
Having said all that, I agree with others - Disney is not going broke. However, they do have the "honor" of being the worst preforming stock in the Dow and it does make them potentially a target for a hostile takeover. Do I think that's likely? Not really - after all, they were down to the 90's previously and although a few companies eyed them, no one took a bite. But if someone wanted a deal on Disney, they are at market bottom prices right now.
I also think it's going to take them a while to pull back out of this slump. I do not consider them a great stock to buy up right now. Sure they will probably eventually recover and you will probably make some money in the long run, but there are better deals to be had that will be far more profitable in a shorter timeframe.