That was actually very well done. Video quality aside (I take lots of film classes, I'm used to like 3rd hand video tapes ;P ), I think everything they did was very well done. They captured everything well. Hacks/hackusations woulda been funny, but then they'd have to add text and all and I don't think that'd work so well. My only critique would have been the sound volume ont he computer. I just found the opening section to be too quiet. But other than that, it was gold. Best things for me were the relatively accurate replication of player death anims, the first person mode, the door, and the hostages. The connection problem was also well done, though not entirely accurate to ingame, but nobody could twitch that fast
As for ragdoll physics jokes, they were doing regular CS, not CS:Source, hence the death anims, door jokes, etc.
-Karrde-