it's strange, because he's using a hybrid. he talks about Classic finder nuances, and then talks about the dock...
he's quite funny though, but this video is really quite old.
How d'you know it's 8.5? I mean blue apple: OSX. Dock with left & right controls: OSX. I don't get how you think he might be using 8.5?? Because the control strip doesn't bounce up and down all the time, and neither you can put apps in there (as far as I know).
Oh gosh, I don't know. I just guess that this guy knows a bit about an early Mac OS and is using that knowledge to trash the current operating system. If he was really familiar with OSX he wouldn't be saying what he is.
Seriously, from his descriptoin about the Mac it sounds like he's using a pre-OS X Mac OS. And even then, it sounds like he's exaggerating. Ah well, I guess everyone has to have a place in this world, no?