Universal Studios Sued for Barring Patrons with Amputations from Roller Coaster

See this article in the LA Times, which begins:

Two men who say they were barred from riding a roller coaster at Universal Studios Hollywood because they are missing limbs have sued the theme park. 

Angel Castelan, whose forearms were amputated after an electrical accident as a child, and Marvin Huezo, whose legs were amputated after a car accident, say they were kept off Revenge of the Mummy: The Ride, an indoor roller coaster. 

The suit, filed last month in U.S. District Court in Los Angeles, contends the men were kept off the ride in violation of the Americans with Disabilities Act.

A personal note about this: About five years ago, I went to Universal Studios with my son and about a dozen other kids with various amputations (all of whom were in LA to serve as extras in a scene that was slated to appear, but ended up not appearing, in this movie.  I didn't see any safety concerns.