I make poor life choices, so I decided it was worth my time.
Looking only at games we lost (because if we won, who cares?), here are the teams that shot better than 40% from 3:
UCONN - 57%
Georgia Tech - 50% (but they only made 6, not sure the percentage is that meaningful given that)
VPI - 47%
FSU - 50%
UVA - 72%
Baylor - 47%
So in 6 of the 14 losses it looks like our 3 pt field goal defense really let us down/our opponent was really, really good from deep. I have no idea if that's more or less frequent than non-zone programs, but it doesn't feel that damning to me.
I think the bigger issues in our losses though was that we just didn't score. We scored less than 70 in 11/14 losses.