You're an idiot. Disney absolutely should have compensated her for what happened. They created the atmosphere by not adequately monitoring the bad behavior of a group and by allowing it to affect the vacations of hundreds of other guests. It is not as if they aren't aware of the poor behavior of these groups (generally speaking). It should not be incumbent on me, you or any other individual guest to make inquiries about what rowdy guests will be visiting so you can pick alternate dates. Disney should have policies in place to protect all guests and do its best to make sure that guests aren't being harassed. If that means banning a group from visiting, so be it. That slot can be filled with another group...maybe one that is more well behaved.
If I go to the movies and someone talks on their phone the whole time, should I just be expected to sit there and have to put up with it should management refuse to deal with it? Yes, I can leave. But I should be able to get my money back. My experience was ruined, not only by the rude person on the phone, but by management for not dealing with it. A smart manager would ask them to leave, and in addition give me a free movie pass, ensuring I return and spend more money.