Its a well made video. Some of the ideas are pretty good. I use some of them and they are very similar.

For example, I use a base of ordinary soap.

I'd don't have the skill to move a DE like that but I probably could, but then I would have to buy the products I think. For me shaving has never been about expensive or propietary products.

I think the two big epiphanies in cutting down on shaving time is that prep is important and that 500 strokes are not required. Two strokes, one N/S and one E/W, if done properly, should be plenty.