They added netting that completely encapsulates your legs and bags. That wasn't possible on MiB so they removed the bag holders and added lockers.
Years ago, a guy slipped right out of the restrains to recover an item their kid dropped. (I believe he was then struck by the ride after he got out.) They started requiring lockers, removed the carry-on bag holsters and bag hooks, added netting on sides of the RVs and updated the restraints in response.
Any time someone gets hurt, UO responds by adding more lockers or requiring more things put into lockers.