when you really think about it that isn't the end of the world for this game and that would be possible in a real fight, so I don't think that's such a terrible glitch really if you anticipate and evade a move you should have the option of attacking, ducking, guarding, throw, or doing another movement option.
Taking advatange of glitches and bugs have always been lame in every multiplayer game up to date. I understand people doing it right now in competitive play cause others will use it anyway and you're there to win. But it really should be fixed as it really kills what the game was meant to be.