...I don't think so... (ref: CGI) I have seen both dogs and horses walk that way due to putting something strange on their feet/legs. Dogs, when they first put snow/mushing boots on them and many horses, the first time they wear 'splint boots' or protective wraps, will High-Step thinking they just have to step *out* of them, so they lift their feet as high as they can. I could easily see the cat walking across the coffee table and then sort of falling/plopping off the end because they are distracted by the items on its' feet and not paying as particular attention to being graceful.
No, I don't think that was *planned*, but I do think it was probably a serendipitous bonus when they filmed. One of those we'll-only-get-to-film-this-dramatic-reaction-once shots.
Here is a video of a horse doing the same thing, reacting to protective gear worn on its' legs for the first time. The animal doesn't understand what it is and that it is actually *on* them, they think they've stepped *into* them and they only need to step *out* of them, so they do the Funny Walk, trying to lift their legs high enough to step out of the things they feel on their legs.