I notice. Though I think these people may have more money and experience, and probably a stronger product (it does seem like it would be an excellent racegun).
Not that these kinds of YouTube mud tests are particularly scientific or anything, or that they have to tell you all that much, but I'd be willing to see him being less generous to the gun, put it through another mud test or two, with different kinds of mud, put it though some sand tests, put it through a test where it's encased in ice and see how well it handles after having to be smashed out and the steel contracting from the long cold.
He has an opportunity to get creative here, with an expensive meme pistol, and doing cruel shit to it that nobody else would dare to due to cost. I don't really expect it to fly with passing colors, but it's also not a service pistol so handling that shit wouldn't really be that necessary.
Don't go easy on it.