It's unsightly to see people constantly shielding him by saying it's because of Oracle.

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Allowing that walk-off error happened during the away game in Texas, and even before that walk-off error, there were instances where he barely managed to make plays through sheer hustle,
even when Statcast showed the catch probability was over 90%.
Even during the away game in Oakland, he allowed hits on 2 or 3 easy fly balls that decent outfielders would have caught easily.
At that level, it's simply a matter of him being bad.