Haha that one didn't happen in my playthrough, but sounds...interesting. For sure some of the glitches are seemingly funny, like beating a quarterback zombie to a pulp with an invisible wrench or something, but this is poor form for a major release, and a launch title at that. The falling through the floor glitch wasn't funny cause it killed the game, sometimes necessitating a reboot of the system. As i have no indication that Cap Vancouver have done anything to remedy these, the relevant parties are not getting my $20. I'm sure no one will be sitting in their kitchen crying over my decision to skip the content, but it adds up. And besides, glitches can be funny but they are still signs of bad workmanship and should be corrected if impossible to avoid on launch.
My favourite one is where gravity seems to defy itself.. which you can then get throw under the world.
All cars start floating around in the air and when you drive, if you hit into a small crate or anything which wouldn't usually cause a problem, it'd react like you hit a wall. Had another one last night where an online player just kept repeating a route it walked over and over (nobody was actually in the game)
But yep, I agree - You don't see this many glitches on other games