So... the reason the Brooks Baseball guys and others are the most pissed is because they had this Statcast data for pitch velocity last year, but didn't release it. They still only released PITCHf/x, which worked and had been going strong for a decade. So if they just would have released it, or even looked at it themselves, it would have been easy to see these problems and fix them before they shut down PITCHf/x. Instead, they made the change and didn't even tell anyone.