Yes an excellent pruning video for figs. I myself prefer to start the scaffolds higher as mine have to stay in pots, and they are easier to move that way. Doing this means I usually have little wood for some time. If in ground, i think i would do it just like in the video.
On pruning wax or sealent. You know now with stone fruit it is never used. Shown to increase chance of infection. Cuts are best left alone on stone fruit. Although we don't seem to be troubled with infections such as canker, wilt, gall, or fire blight with figs. So it may be fine? It would be great to have University reference to this.