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Why not? This combination of questions allows you to quite clearly determine the side. If the player were peaceful and not with a Russian spirit, they would say yes once. The only risk is the possibility of them being a Sorceress. And all "no" answers could mean either belonging to the Mafia or being a Knight or Warlord. Given the limitations, it's difficult to ask more precise questions.
By the way, where did you find that Revan cannot be one of 6 peaceful roles out of 11? I only counted 4 - Wizard, Apprentice, Sorceress, and Knight.
Added 3 minutes later
In the newspaper, the Bard did not charm Tox. Does that mean he is a male?