If they did the scratch effect with some other device or on the computer, and just pretended to do it with the patch box, that would be cheating. If they made a click sound electronically and showed it as closing a classic If they muffled the bass drum (their September cover) electronically but showed it being done with a muppet hand puppet, that would be cheating. And confer where they have the keyboard that is clearly computer filtered, they have both the keyboard and the laptop in one of the shots.
Its all samples mixed together, but they claim, at least, to show where all the of the samples come from in the video.
... though maybe La Vie en Rose is more apropos ... I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.