Regardless of how crazy Disney's stance is - the widower is suing, who never entered into any agreement with Disney.
The guy who, according to Disney, did wave his rights is dead. He's not gonna sue anyone anymore.
Yeah I think there's a lot of people who aren't getting this. It wasn't an informed consent to danger form where the activity they knew was dangerous, and signed off on, killed them. This was a Terms of Service agreement you automatically agree to when you make a purchase. It's supposed to govern the terms of using that purchase.