Well, maybe aside from that, old players will never match the speed of young players. I guess this is them leaving their mark before their retirement, albeit a bad one.
And also, that is, if Starcraft 2 does become popular. While what I know is mostly about fighting games, successors of the series really need to prove themselves in term of game balance and depth. Otherwise, these pro gamers will stick with the old version and leave the new games collecting dust.