That's a critical stat. While those teams may not have shot well from a percentage standpoint, they took more than they normally do and made more than they normally do.
This could indicate two things:
1) Post defense was so good all that was available were 3 point shots. BYU likes to play the zone, so an increase in the number of 3 point shots makes sense as teams may have found it difficult to attack the middle.
2) Our perimeter left the 3 point shot open. If it's open take it. Teams took an above average number of threes against us because they've never gotten so many good looks from the 3 as with us.
I'm inclined to think it's a combination of the two.
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