From what I have read, the proposed chances will lead to slow paced static gameplay.
Imagine a situation where a lone player is being charged by three bad guys, in mm3 the lone player would be able to meet them head on and get into the middle with the ability to turn and meet his enemy as he runs through. Whereas with a slower turning speed that simply wont be an option because you will be spammed and stabbed in the back and side. His only option would be the back peddle and spamspamspam, and maybe feint once or twice.