its debatable
often times its not under your control to be in 1-1-1
like yeah u could argue abstaining or shooting enemy faction or w.e but its not always an available option
i was in a 3-2-1 game. town lynched mafia then serial and last mafia killed a towny each at night which ended in 1-1-1. at that point serial and mafia just basically begged town to vote with them and tried to sell why they played better and deserve the win
it was disgusting phase tbh. thats not how mafia is played
1-1-1 shud be avoided most of the time by ending the game right there since its no longer mafia. if the indie is hostile, he wins. if indie is non hostile, mafia wins (he wins too if survivor)
2-0-1 and 2-1-0 are perfectly fine though
Mafia and hostile indy should never let it get to that point.
Even in your begging situation, both fucked up and should have shot the other or not shot and got the other lynched.