When you play against Pussycats, there are less abilities you have to worry about. So I wouldn't say that the SoA would be wasted against Muze.
But yeah, I would include her too. She is a good enough 3*. She will imho lose out against most staple clans and SoA, but she is still better than any other 3* Pussycat. At least she has the potential to draw pillz from the opponent. Which isn't a bad thing.