There is no guarantee he gets out of the inning after a dp. Hinske hit a flyball because it was a sf situation. He bats differently if he needs to get a hit. Though I'm sure strasburg would have gotten him out in that situation.
I don't see why we can assume the dp, that was a slow hit ball. Good chance there would have been only 1 out.
"No guarantee" from Mr. predicts-the-future-in-his-previous-post.
If he doesn't have to pitch perfectly everytime, he would have been relaxed and would not have had a 4 pitch walk.