Saying any 3-seed is a nightmare is overstating things. Butler is 23rd in KenPom, one spot above us. I know they have a reputation for playing slow and being physical, but their defense is 50th in KenPom. Butler would likely be favored by no more than 3.
Yeah, I agree. Often there is not even going to be much of a difference between the 3 seed and an 11 seed in a bracket. Maybe just 2-3 points. And it seems like most years there is a 11 seed that is actually favored to beat a 6.