I think that will only work if the DDoS stops. If it keeps going then things like this then demands like that are probably going to be more impotent than anything else; why even bother when service is still interrupted?Oh, great, I still can't get on PSN to buy/play any digital games on my new Vita and on top of that we've set a precedent for DDoS ransoms.
Though the irony is possibly that just because of the holiday season a natural DDoS was going to happe anyway so it made no difference whatsoever, effectively.