So where did you hear that she was pregnant and he kicked her in the stomach?
I recall reading that he kicked her from behind, (which could be construed as even more cowardly) and he said that he slipped. Watching the rather indistinct video, it's funny how the "slip" was followed up with not an apology, but by shouting "get the f**k off, get the f**K off"!"Additionally, if someone slips, they nearly always make some gut reaction sound (like "Oh,s**t or something similar) but I can't hear anything to that effect here! Also I can't remember it being mentioned anywhere that she was pregnant.
Anyway, he comes across as being an arrogant rich foreigner who thinks he can treat the local Thais like cotton plantation workers, and has found that in this case he can't pay her off (as would have happened if she was from a less influential family)
If he hasn't skipped the country already, I would suggest that he does so soon, because he is certainly not winning any friends here with his behaviour, and to not turn up at court with no reason/excuse shows the world what type of an arrogant moron he is.