What Sub said, this was an all-or-nothing concept. If the roleclaim to Zilean hadn't happen, town had very low chances to win. The only possibility for mafia was to kill Zilean during Night 1, and the moment that failed, it was as much as over. Link still needed to figure out the mafia in the double-claimed roles, but it wasn't that hard anymore at this point.
Sorry for that fast ending, Coffee. :/