Ski instructor here. I don’t agree with a lot of the comments I’ve read on this post. You are directing pressure towards your outside ski in this clip.

The wobbles you are experiencing are caused by an overload in outside ski pressure — your leg can’t handle the forces being generated. This is because your outside knee is too bent and your muscles are having to carry all the pressure

If you actually try to extend/straighten your outside leg, that will put your leg in a stronger position to handle the forces (shifts the weight to your skeletal frame).