She says too many variables for her missing the ball if it's bounced.
I expect field conditions also have a lot to do with this. At the MLB level, I've seen multiple throws that actually bounced before 2B and still made it to the glove. Getting a predictable bounce off a perfectly manicured, cleatmark-free infield skin would seem a safer bet than getting one on an IF that's seeing a 3rd or 4th consecutive game since last being raked.