I was surprised when you noted Caroline for failing to do the job guarding the three, so I went back and did a quick look back at Baylor's dozen threes: seven were scored when Caroline wasn't on the court, and three others were scored with Aubrey, Lou and Dorka the closest player to the shooter.
On the two that were scored with Caroline being nearest, she nearly blocked one and the other was the result of Aubrey being screened at the top of the circle and Caroline happened to be the Huskies player then nearest the free Baylor shooter.
Geno apparently chose to give Baylor the chance to live or die with the three, and it wasn't Caroline's defensive failures that were the issue.