Vabo, that article is a complete waste of paper. Do you think you can acquire “strength” by kicking the ball 40 times? I mean, usable strenght with some sort of carry-over to other football activities?
I happened to watch Barcelona a few days ago. Athletically, they are amazing. So, the statemente usually proposed is “Technique has a to go back having a primary importance”, well, if you run (fast) like Pedro, Messi and the good company is def better. Journalist and such tend to confuse muscular volume with athletic abilities.
The main problem is consistency, with a common problem being represented by the continuous changes of coaches and consequently of S&C coaches. More specific tasks to develop speed? To develop fitness yes, to develop speed, no.