Or a framing attempt channeled in order to take out a strong player swiftly.
I think silencing herself is a move that brings a lot of attention to herself as well as faking it anyway.
She is very capable to WIFOM her way out in a Mafia Game, but she is also known for being a powerful scum player that Town is always so wary about and that is why she is often targetted by Town (I mean even normally the attention is on her, let alone now), so she is aware that such bold moves would be detrimental for her if she did so and this is exactly what's happening here so this smells more like framing rather than a genuine Big Girl play from Flower. I don't think she confidently thought she would get away if she tried and she should be strong enough as a player not to kinda blunder like this.
I think as scum she would rather try to play more townish than this.