That was the moment, the second such failed challenge earlier this year, I lost faith in him - and I've been a long-time supporter of his potential. What better way to tell the pitcher - and his catcher! - "hey, put that in your spreadsheet for next time, you really fooled me on that pitch."
(Not to mention that he'd make these challenges with bases empty and two outs and fewer than two strikes, if I'm remembering even closely.)