http://m.youtube.com/index?desktop_uri=/&gl=US#/watch?v=aGPZR0n5SDU
Girl dodges a punch and is knocked out with a knee.
It can happen and it does happen. Muay thai is an art that they stay more upright because of this reason. Dropping your head makes an easy target for a knee shot. Seriously have you guys ever really been in a fight. Do a search on youtube for knee knockouts and you will find more of them. To say it doesn't or can't happen when bobbing and weaving is foolish.
As for the jing wu adding boxing to their system, ok. And boxing does have its place, in the ring wearing gloves. The entire art of boxing changed with the queensbury rules. Old style boxing would fare much better in a street confrontation. Now I'm not saying that boxing doesn't work, but its very limited. Also the way punches are thrown with and without gloves differs a lot.
This whole thing is about him breaking posture and losing his linkage with the bounce. Taking away a solid structure and power generation. Also adding in bobbing and weaving, what your lefft with is not wing chun at all. Its merely a boxing hybrid.
The link doesn't work
I never said it couldn't happen, just that in all the time I trained MT never saw bobbing and weaving lead to a knee KO. WC stays upright, so does MT. For the most part, a lot of boxing does too. Till I see it reliably happen, I can't say that bobbing and weaving automatically leads to a Knee KO on the "d34dly str33ts".
I still think the kung fu masters who put together the Jing Wu curriculum know better than you or I - but they only won a bunch of challenge fights, what would they know...