Maybe you remember the discussion we all had regarding UZR about 6 years ago. Not one person could explain how the data was collected. I did my own research. I do understand that the field is divided into 72 or 78 zones or something. That's wonderful. But who or how is the plotting of the ball's trajectory, etc. determined?
The best that we all could come up with is the human eye. Maybe that has changed?
I don't really care about Gorilla suit antics. But I do question the accuracy and validity of UZR and any other Metric formed by subjective assessment.