HA! Yeah, looked to me like he had time to back down, but guess just since the GoPro was looking at the swamp, doesn't mean his eyes were...
I did something like this at the dunes a couple/few years back. Down by the lake there were all sorts of puddles from high tide. Well, actually just the way the dunes were that year there were a bunch of small ponds. I had the bright idea to skim them since they were all about 6-12 inches or so deep right? WRONG! I was kicking arse at the skimming until one got a little deep and took some speed away once I hit the rim right before one that was about 3 foot deep...head over heals I go at about 2nd gear half throttle or so on my '07 KX450f... Actually was a fun ride, but I was soaked and had to get the bike hauled in so I could change the oil/gas etc. I have pics of me pouring water out my boot right after somewhere.... It was fun I thought though. However, it won't happen again...