The exact same thing can be said for any martial art, any MMA school or camp. You get out based on what you put in. Just because someone trains in BJJ or MMA over Wing Chun does not make them competent as a fighter or able to apply any of it in the real world. You need realistic training or it doesn't matter what system you study. The fight is going to come down to the physicality and conditioning of the fighters first, with technique/training being the deciding factor if both are close to equal. For example, a sufficiently motivated Westerner with enough size and reach can do very well in Muay Thai against the often much smaller Thai fighters who just don't have the strength, reach or ability to hurt the larger Westerner, that doesn't make the Westerner better at Muay Thai, its just a huge physical advantage. We have weight classes in most fighting sports to prevent this and to promote technique over sheer physicality. Put a 5 foot seven BJJ guy in with a six foot four WC boxer and watch the BJJ not work all day long. Taken out of context, you would then mistake WC for a great system and BJJ as worthless because you had seen a slanted competition. Qi La La proves that an equal level of physicality and training in WC can produce similar results to his competitors in Muay Thai and Kickboxing. This vindicates the original argument that WC is ineffective.