Disney uses the same TOS for many of their online portals, which was why the news ran with "it's the Disney+ terms of service".
The victim had signed the terms of service years ago for the Disney+ streaming service, and Disney declared that since he agreed to those terms for watching videos, he was bound by them for eating at a restaurant.
Plus, it really is the victim's fault if you go into a restaurant with a potentially life-threatening food allergy and don't bother to let the wait staff know you have an allergy.
Which was not the case here. They chose that restaurant because of its promises about accommodating patrons with food allergies, according to the lawsuit, and "The complaint details the family's repeated conversations with their waiter about Tangsuan's allergies. The family allegedly raised the issue upfront, inquired about the safety of specific menu items, had the server confirm with the chef that they could be made allergen-free and asked for confirmation "several more times" after that."