Unfortunately yes. USH had Marvel appearances, but by 2007, it decided to get rid of them as it wasn't doing anything meaningful in the park (no Marvel attraction in the park) and thereby costing them money. Spider-Man was rumored to be in the building where the Mummy ride is now, but Universal elected to use the Mummy roller coaster as a replacement for E.T. instead. In hindsight, if they ever foresee the MCU being so popular later on or expand the park by tearing down a few soundstages under Comcast, I'm sure USH would have kept the Marvel rights on the West Coast.