1. I'm not a social media kind of guy but aren't there features in Facebook that require higher band width?
2. I'm assuming they have some sort of terms of use screen that should cover everything. But yes I can see issues with "free" internet from some people who think that free open wi-fi is written into the constitution and they have every right to do what ever they want*.
Imagine all the Skype and Ustream live feeds. Disney should restrict usage now and if bandwidth is there, open it up more.
*OP I'm not really including you in this group, but as posted above, I wouldn't expect speeds that would allow you to stream video. With the amount of people connecting at one time, I would expect dial up speeds.