That kid's creepy, but very good. He didn't say "shriiiiiiiiiiiiine" with quite enough zeal for my tastes, and he added a weird pseudo-Brit accent, but I liked his performance, and I'm impressed that he got through with a straight face with a schoolyard full of kids watching.
As for him not getting words exactly right, or describing an artifact from a different season, who cares? Olmec himself didn't repeat his advice precisely word-for-word until they switched to video footage. Besides, it's a joke, not an exact recreation of an episode.
Coincidentally enough, I'm working on my own Olmec's advice impersonation. I think we all are...am I right? *crickets chirping*