Which style is this move from?

[Cataphract]

Please tell me from which style/form this technique comes from.

Stand in horse stance. Left arm does a sweeping low block while right hand does an inside block, forearms rotating clockwise around elbow. Then switch sides, forearms rotating counterclockwise. I have seen it performed by southern stylists, but never in context, e.g. this video at 00:41 as a "bad example".

https://www.youtube.com/watch?v=5W_72qh3z7Q

Is it related to the cloud hands of Taichi and Taizu Chang or more of an outside trapping shield catch? It is also found in Karate's Pinan/Heian.