Answer for Different thoughts on serving

Hi lrezende, 
I understand your point about the contrast of views in the emarathich video. In our video we are looking at a more simplified version aimed at beginner/intermediate player’s. We are just looking at the basic concept of serving with spin and the most likely return after that serve.
Of course at a higher level, players are able to return heavy spin services to all areas of the table.
Hope that’s helpful and if you have any more questions feel free to ask!