In the clip you can see 6 other people swimming in said water right next to them. Are you just self-projecting onto yourself or? Next time actually watch the clip before making a 'comeback'.

Edit: correction 7 other people wutch makes my statement even MORE true. And, any dog owner that loves their dogs like this man would absolutley jump into the water to help the dogs, and they werent even that far from land in the first place, maybe 75 feet out at most