Pretty sure you're the only one putting your foot in your mouth. You made a completely false claim, got disproved by math and game mechanics and are now grasping at straws to try and somehow still make your statement valid, when it isn't... sorry bro...
I'm not the one who tried to claim that PaK guns are bouncing off E8s at all ranges. FFS, you've probably got a better chance of missing your target outright than bouncing the shot.
You can argue about the cost/effectiveness of the unit all you want, but trying to pass that turd just isn't going to happen. Sorry your pal got called out on a stupid statement, but there it is.