Well, the Vipers got completely outed, reduced to none of their starting members, and were generally shafted by the game setup. The vipers didn't win due to a cushy starting setup; at one point I was their only dude, and the townies had investigative and bulletproof powers.
So I disagree on #2. The game setup was not the reason for that win in the slightest.
#1, all mafia members survived, and not by lurking through the whole game either.
Me and Takhisis were basically half of the posts. You'd think someone would have lynched us just to shut us up. With a single murder per night, and a poopton of townies to murder, we had a marathon of lynches to endure, and every one of them missed us.
So I blow raspberries at you. Wasn't a cakewalk there either.