Steve
Mostly Harmless
People claim this as "Kung Fu" because deep down they realize that it's problematic that Kung fu is pretty much absent from MMA. Despite decades of believing otherwise, the MMA "fad" has yet to subside, and is slowly eating away at traditional martial arts.
I'm actually surprised there isn't more san shou crossover. Cung Le started in MMA too late in his career to make a huge impact, but he certainly earned a spot in the elite ranks. And san shou, in my opinion, demonstrates that kung fu is largely a victim of its training model.
@JowGaWolf would seem to be an example of someone who can modify the training model and make the style practical, as well.