Like the video, I think it's probably because during the early 2010s, Chinese robotics development was long under the shadow of Boston Dynamics, which consistently published videos of its motion capabilities. Back then, there was a lot of criticism of Chinese robotics capabilities on the Chinese internet. Now, with Chinese tech firms like Unitree standing on the same level—or even higher—than the old competitors, it's only natural to show off those motion capabilities. I would also arribute to the influence of the Matrix, that was the first thing Neo learned after being pulled out of the net.