I think they're referring to the 'game' that was a literal PNG with a 'game coming soonTM' and STILL IS, and I'm very with TuxedoedPenguin's reasoning on that one.
If a game - or at least a tech prototype even - can't be submitted within the timeframe of the jam, then it genuinely undermines the whole reason and function of the jam, ranked or not, and should be promptly disqualified at the jam's end. At that point it's rather a hobby product they can release on their own, rather than abusing the jam for free publicity.