The only danger so far as I can tell is that they photographed the add-on kits on the GW model. I don't know if that's a tricky legal area or not.
It's definately a dangerous legal area. They use the GW models to promote their own products, without consent from the company who produced it.
It's the same as me using a Coca Cola bottle to demonstrate my new high-tech super-straw. It wouldn't be on the net for 2 minutes, before an army of suits pushed so many legal documents under my door that Greenpeace would harass my ass for endangering the rain forest at the same time.