This is ridiculous.
Does anyone understand the definitions of athleticism?
Professional soccer players are professional athletes, just like NBA players, NFL players, and Michael Johnson, Marion Jones, Bo Jackson, Michael Jordan, etc, etc. All those people are great athletes and many could do multiple sports at the highest levels.
If we took all the soccer players and made them run track, some would be able to compete at the Olympic and World Championship levels, and many others would be competitive at lower levels while some would fail miserably. And if we took all the World's XC runners and made them play soccer, we would inevitable find a handful of athletes who could play World Cup level soccer, while many others could play at lesser professional levels and some would fail miserably.
Great Athletes can do great things in many sports if they would train for them. Without training for them they may do OK because they are still great athletes.