I see little value in it, personally. Kung Fu is a martial arts thing, so something along the lines of "martial arts class" would be the improvement, than the singular being a "guru". A lot of people do learn, but it typically happens in a class, than a singular guru showing you? Just the way I see it. That said, I'd probably feel differently about it brand wise if it happened to be more generalised, such as "fight guru dot com"
IMO