Ian wrote:like fong said, fun stuff. but how is this context-specific to martial arts? just curious.
Most likely in a pulling context.
While not all of those pull ups looked particularly useful, a number of them looked used for sitting up in the guard in BJJ or sitting up in the triangle to get better leverage on the head. Also some of those upside crawls have a value for increasing the ability to pull/squeeze with the legs for breaking posture or maintaining a closed guard.
Though largely I tend to agree with the topic title.
-pete