Karlo, Mr. Murayama can ski, that's for sure. His more formal explanations in Japanese are sort of word soupy.... it'll be interesting to see how they change as he works more in English. I love that he seems to have single handedly gotten rid of the old S.A.J. hunch over with swoopy arms thing. Here's an interesting video of him with Tetsuya Okabe, a former (and top seed) WC SL skier. Okabe gives a clinic at 5 mins in, a little back and forth, and some skiing. For non speakers, what they're doing is still pretty clear. Murayama is in the light blue pants, Okabe in the white pants. Love the way Murayama stands on his skis even in these exercises.
Here's my uniquely personal opinion... it's appropriate fora page 19 that hopefully will be forgotten soon, because it will be very controversial.
Takao can do whatever he wants on skis, whenever he feels like it. I think he's confused because of this. He can make rotation work in short turns if he forgets to counter and maybe he can even make extension work in slalom turns, if he forgets to flex, so honestly, he's the wrong guy to take lessons from... because the words are not his, but whatever he thinks he should present for the audience he's talking to and because he chose a model to subscribe to...
He's an absolute great model to look at, but not listen to... you don't want to listen to the top 0-1% because they are fortunate and everything comes natural to them. You want to listen to the top 1-3%, the ones that had to work and learn everything one step at a time and then make it work...
And that's my 2c of wisdom and opinion on that. If you look at him, his skiing completely changes based on the task and from video to video.
Likewise, I really do like Sebastien, but I didn't thumb it up in your post, because he tries to adhere to a model, so most of his turns are detuned and lookie-likeee. And I do get the point of uniformity, there is obvious value there, system-wide... but, the only one there that doesn't even try to fit in is JFB and nobody says a word about it, because they, well, wouldn't even know what to say... let alone touch that level of skiing... and JFB, while closer than most, is not as close to Reilly as he used to be.