Yea, that's fair; it's definitely one of the more surprising things that they do. On the other hand, it's pretty common to pass around squared values that the m

Yea, that's fair; it's definitely one of the more surprising things that they do. On the other hand, it's pretty common to pass around squared values that the math says that you ought to have taken the root of, when you know how long it takes to do that root. You're going to end up with some kind of convention for it, so it might as well be a short one.