You could argue that Maul’s presence made her realize just how low Deathwatch could sink. Vizla at least wanted to uphold some form of Mando tradition, but Maul was very clearly just out to make them his personal army, and I think it’s fair to say that any Mandalorian with their head on straight could see the hypocrisy in using a guy like that as a means of upholding cultural value.
The whole through line arc of the characters in the Mandalore plot is that they’re all arrested by tradition. Deathwatch has a radicalized ideal of their culture which they use force to uphold. Ahsoka of course has her struggles with the rigidity and hypocrisy of the Jedi. And Maul fights for independence from the Sith, yet he instills their practices in everything he does from how he gains power to how he treats his allies. He’s a mental slave to it all, and in a way so was Vizla, whose allies didn’t lift a finger when he was being killed by Maul. Radicalization is a huge theme throughout that arc and the Mandalorian show. Even in Rebels we see it with Clan Wren.
So yeah, Bo could be viewed as having got off easy for her misdeeds, but you could also argue that she hasn’t necessarily found peace since. Her deeds still follow her, but at least she got out before it was too late to try again.