Like I said in the other muay Thai video's comments a couple of weeks ago, fights at the Reggae Bar (which I was at about a week and a half ago, actually) are staged. This fight is staged.
Whoever's doing their PR these days is doing an awesome job, though, because this is the second video from this place to pop up seriously everywhere.
If you're ever wondering whether a refereed fight is staged or not, this simple test is a good place to start: did one of the fighters pull a folding chair out from under the ring?
I voted it up because it's funny, but if you thought this was an actual unscripted contest I hope you have a responsible adult to cut your food for you.