And he was pulled out of the water by two other persons using a paddle. Before that he was stuck upside down under the kayak for a solid 10 seconds before another person grabbed the kayak. There was no indication that they could've uprighted the kayak under their own power (we can only speculate). The person didn't look like a happy camper afterwards.
10 seconds isn't long at all, and it doesn't look like he was stuck (probably just trying to roll before committing to the wet exit). He walks away under his own power in the uncut version. I've seen footage of far, far closer calls.
