That's actually very funny. I'm always impressed by how much "lift" cats can get. They jump so high, and they're so flexible and agile. I'm not surprised your cat didn't fall, because mine has made jumps like that before.
And thanks for finding that site. I used to laugh at my cat all the time when I was younger, and I used to think maybe I was weird for being so obsessed with my cat and laughing at almost everything he did. I guess it feels good to know other people tend to do that too.