I will have to ask. I don't work with this technology, and haven't touched the code. I work in computer vision for baseball, with a completely different set of challenges.
I can also imagine MLB having similar concerns as the NFL when, for instance, they insisted on removing the line as the ball is being spotted. That is, if they are showing the strike zone and the ump's call seems inconsistent, then it wouldn't be a "good look" for the sport.