You would have to burn a pinch hitter AND your backup catcher. You can't deplete your bench that early in any game...
So, you risk losing the game later as opposed to losing it then. That was it. That was the team's last best chance to win this game. The game was lost at that point.
The series of event leading up to that point is what actually would have made me do that. The "it's baseball" thing was going to lose this game tonight. Sometimes, at some points in the season, you have to fight the "it's baseball" by being unconventional.
Another thing that would have increased my level of urgency was that your #5 pitcher is starting tomorrow. It's very difficult to win games started by your #5 pitcher.
All losses aren't created equally and this one feels worse than a lot of the others.