PItcher bunting ruling question

[humdinger]

Watching the CHC/CHW game right now. CHW Pitcher, Masset is in his first major league at bat...runners on 1st and 2nd, one out. He's up there to bunt, obviously.

He square around, and bunts a VERY good bunt up the first base line. It's right down the line, and the firstbaseman for the cubs waits to see if the ball will roll foul. About 45 feet down the line, the ball, foulline, first baseman, and batter are all very close together. The ball is starting to turn towards foul.

If the batter (the CHW pitcher, who is up there strictly to move the runners along) were to kick the ball while it's still in fair territory, what would the ruling be?

I know he'd be out, but would the runners still be allowed to advance? If so, why don't more pitchers do this?

Comments by people more knowledgable than me? This seems like it would be somewhat effective, especially for pitchers who are bad at bunting...

Thanks,

hd