Personally find little to no practical value in single sample, unrealistic torture tests. However, I do find a little entrainment value in watch somebody abuse their pistol(s) in ways I NEVER would my own.
https://m.youtube.com/watch?v=Ca6Aj19RVz8
If it didn't fire after 5 seconds in the water I'd be looking for a different gun. Yeesh! (to the guy in the video, not the OP)