It's a bit a both, although probably best termed 'art'.

It's satire by proxy in the sense that nearly all 'projects' Cards Against Humanity and the ad in question were, and the prose mirrors the structure of similar post-mortems undertaken by legitimate companies in similar situations. It may have elements of truth (although hard to confirm at this point), but the purpose is to hook the ad (which was context-free) to the cause, and thus generate buzz, speculation, and more analysis. In other words, a publicity ploy intermixed with a pick-your-own-layers of social commentary.