Thanks for posting this. I enjoyed this. It is amazing how similar such disimilar players are. I have seen split screen side by side video analysis of Fed and Nadal and it also showed the common attributes of each shot.
I disagree with the comment above that modeling after these "warm-up strokes" is not a good idea. This analysis includes all the attributes of the modern forehand in my view and I hope (dream) my FH is as close to these as possible.
I think once you have these basics down it becomes possible to adjust to the dynamic situations of real match play. If you don't have these basics down, there is no way in hell that you can adjust to the dynamics of match play. Walk before you run baby. So, this is way cool in my view.