Guys, the ride isn't meant to be taken seriously. Fallon literally stands up in the middle of the ride and says, "what else can we do in 3D?, I know, a t-shirt cannon" and then he shoots a t-shirt cannon at the audience to make fun of the 3d. The reason why it feels like a copy is because that's Fallon's humor. To view the world as ridiculous and silly.
I understand if you don't watch the show, you might not get it. But it is TOP QUALITY FALLON humor. I guarantee they were sitting around a writers room and at some point someone asked "what's next?" and someone else said "it would be cool if we could go to the moon and float in space", and everyone around that table said, great! Because that's what FALLON is. The fans will get that. Other people, not so much.