I think you have not been there recently .................... G-11 markaz is "may be the most ugliest markaz" but it has a life and it remains busy even at nights, Jinnah Super, Kohsar etc well gora log go there may be that's why but among markaz visited by locals G-11 markaz offers almost everything for its residents.
Its not only this MMA club, there is a Shotukan karate club there and couple of fitness and body building clubs as well, and believe me almost all these clubs have a handsome number of members. Though these martial arts clubs really do need to move to some other big place(s).
@Zibago