I pointed out in the other thread that that method was only convenient for boxers. The "slit" in briefs is ridiculous. And I recall a briefs commercial talking of it like it was a pocket rather than an escape route for a penis. And indeed it does seem like it would function much better as a pocket. Though the slit in boxers is very accessible

It still seems ridiculous that people would rather undo everything fastening their pants, and have to then hold their pants up themselves, while they hold their underwear down just to take a piss. If you're wearing briefs that's probably the only options. But for boxers, you just unzip and pull through. Don't have to worry about the belt, or the top button of your pants