First of all would like to point the differences between the two different objectives of styling...In this competition that was not really mentioned.
I think a better learning experience would have been to style a tree for future development.
I have observed different kinds of demos, and each one has its merits as long as learners are notified when the demonstrator is going overboard and the health of the tree can be affected, or some procedures are done for instant gratification.
Some demos are so extreme and so much it is done to a tree, that the chances of the tree surviving are very slim.
Normally the point of those demos is to impress to a degree and at the same time show with rough material that normally will need to undergo styling over several years for better results, what can be done and what the end result will be.
In some of this demos a branch will be, contorted to fit in the silhouette of the tree, which really can be better avoided by bringing the foliage close to the trunk over the time...So for me that should be noted on those demos.
Another thing is that some time there are too many things done at one go, the large removal of foliage, wiring, even repotting at the same time...Trust me I have seen that in Japan...but there is always a reason behind that, and some of those reasons are easily explainable as long as you know that is a demo and you should not always follow it at home.