No, it's because he didn't eject the pitcher after he tried four times to hit him and finally succeeded. At that point it was obvious what he was trying to do. Intentionally throwing at a batter is an automatic ejection.
Had Dempster had just a little better aim, it wouldn't have been as obvious and he could claim the ball slipped or something. Pretty hard to claim that after trying so many times.
Got it, I really thought the next two were just inside pitches and both were waist high; is Dempster really that bad and off target? That's embarrassing.