Oh yes, the out-of-game chatter of two useless town roles significantly reduces the Mafia's chances of winning.
I see the votes are going back and forth. So, if we don't hang Amko, then the night was meaningless. If you want to hang Vishmaster, go ahead, but I won't vote – you'll get a Night Neutral Vote (NNV). And at night, Gerald and Triss will deal with the Mafia, after which they will have an advantage during the day.