It's an elimination game. You do everything you can to win that game with a natty on the line. This isn't some weekend SEC series. You do whatever you have to do in order to give your team a chance to play the next day. If that means pitching 9 pitchers tonight, so be it. It's the last game of the season unless they win.
If you live to play another day, the team has more confidence and rides the wave of emotion and you see where the chips fall.
If you lose, you lose with no regrets or second guessing saying "we should've pitched so and so just so we'd have a shot game 3"
The % of winning game 3 doesn't matter if you don't win game 2.