No, why would that happen?
She already knows humans can be enemies. She knows from Minerva himself that Peter is their enemy. Her first enemy wasn't a demon, it was their mother. She already knows this, why would a rando change anything? And just because Musica was nice doesn't mean other demons are, 99% of the ones she's encountered tried to kill her. Musica's the exception, not the rule.
Nothing "new" happened, it's just simpler to point a gun at Andrew than it is to kill or even threaten Mama because there are no ties there and he's taunting her in every way possible into wanting him dead. It's progress for Emma, sure, but it won't change anything about her views.