Well it's true. Josh Thompson isn't really known in casual circles. Not that Pettis is a household name. (He is just that guy that did that crazy kick).
He is that guy who did that thing that one time.
Pettis seems like he is kind of delusional about his own level of fame. Being on sportcenter once doesn't mean anyone knows who he is if you say his name or that they care about him.
I like his chances against Josh but it will probably be competitive.