Julien Regnier did do the same trick, but his run was not replayed over and over national television so anyone who skied and watched the olympic freestyle moguls saw it and wanted to emulate it.
Noone knows a tree fell in the woods, unless people see the tree fall.
I know I saw Moseley's 3 mute in the Olympics, and immediately wanted to learn how to do it. It was definitely a catalyst for myself, (and I'm sure many others) to start freeskiing.