The title under the video: "performing the Basic Parallel using "Foot Steering". This is approved, this is a standard, wow.
The first thing I see in this skier after one turn, is there is no use of the ankles or feet. It's easy to see, it's almost like the feet and ankles are locked and have no feeling. Everything is done with pushing, extending, leaning and twisting. If the slope gets any steeper this will not be pretty. As per my post in the other thread, "What the PMTS coach sees", the TTS instructor will notice that there is something wrong with this skier. They will probably respond to the problem by saying the boots are too stiff. Yet they never worked on how to make the ankles and feet tip from one side to the other. This skier have no idea about how to flex and tip. In a nut shell, this is what happens with TTS.
TTS have many ways to rationalize why the student can't learn it, they have lots of excuses for why the student isn't learning, as Irwin said, but they can't teach to the student, for what the student is missing. Worst is, they teach movements that remove the student from having any chance of learning it, by chance, on their own.