I thought the same thing. Did they not see Florida-NC State earlier this year. They missed a FT up 2 and Parsons hit the 3/4 court shot for the win. I don't know that they missed it on purpose, but if you have a chance to hit the FT to guarantee OT is the worst case scenario, then I think you hit the FT.
The only time I see missing the FT on purpose is if it's the same scenario, 4 seconds or less, and you just hit a FT to go up 1. The difference between a 1 and 2 point lead at that point is negligible because your opponent will have to take a 3 pointer either way most likely. Other than that, I think you hit the FT.
That's the situation Michigan State had against UT. They hit the first to go up 1. Then they purposely missed the 2nd to force UT to either force a quick shot in the last 2 seconds or run a few tenths off before calling a timeout.