nonesense.
I used motion in my play-off games and succesfully played motion.
the only times I didn't was because my oponent would likely know I would play motion, so could come up with countertactics, so I had to change now and then.
Basically I won the championship using outside offense, so I don't see why motion would not be good.
Ofcourse you need motion-players in order to be succesfull with motion, that is true...
They are not your friends; they dispise you. I am the only one you can count on. Trust me.