Title says it all really, the animation & personality each class' fistbump has is all top notch and flawless (except perhaps that demoman stumble but eh it fits) but we have partner taunts with near identical ideas already; the high five, skullcracker, flippin awesome etc. I don't think the square dance counts as similar but still, another interactive taunt involving the limbs of the tauntees will only water the other taunts down and make them feel bland and common.