Intentionally walking the #8 hitter with two outs?

[BiZmaRK]

In the third inning with two outs and a runner on 2nd base in yesterday's Giants game, the Giants intentionally walked Marlins #8 hitter Hayes (catcher). Why would they not pitch to him so that they could have the pitcher - instead of the lead off hitter - lead off the next inning?

Top 3rd: Miami
- O. Infante singled to shallow left
- G. Stanton fouled out to first
- G. Dobbs grounded out to second, O. Infante to second
- B. Hayes intentionally walked
- A. Sanchez grounded out to pitcher

0 runs, 1 hits, 0 errors
Miami 2, San Francisco 0

[GiambiJuice]

They are not worried about what will happen next inning. They are trying to give themselves the best possible chance of getting out of this inning without allowing a run.

Especially with the way the Giants have been hitting the ball , and with the ballpark they play in, one more run allowed (making it 3-0 Marlins) would make it much more difficult for them to come back to tie the game at some point.