Huh? Why's that?
Speed Boost made him too fast for his own good apparently. Besides, after a Swords Dance, I can't think of anything that can reliably counter him besides Slowbro. Hi Jump Kick, Flare Blitz, or Stone Edge can OHKO just about everything else in OU when he sets up and after a few turns outspeeding him is impossible. The only reliable way to revenge kill him is priority, though he resists Scizor's Bullet Punch and I'm sure he can take Conkeldurr's Mach Punch if he hasn't taken much residual damage. There might be other reasons, though I was too busy this last round to participate much.