And I bet Taylor would start trying to fix things regardless, she might not like or trust Emma but I don't think this Taylor would let her die. Though might also be a vindictive "now live with your self"-choice.
That would be in character for Taylor. And regardless of what Emma and Sophia did, what Falazure did to them is not something she would be happy with. I can be a vicious bastard, and have no sympathy for either Emma or Sophia, but what was done to them was excessive and cruel and something they didn't deserve. Especially as they were already being punished.
Taylor would do what she can to ensure that Emma and Sophia don't die or suffer from what was done to them. But doing more than that? Yeah no, she is very unlikely to do more. Keep in mind, she was chosen by both Bahamut and Tiamat. And the former, while good, is
not soft or nice when angered.
Keep in mind that we have a good example of how a metallic dragon takes revenge, versus how a chromatic one does. The former is, in many ways,
worse than what the latter would do. Though they are not above highly destructive rampages themselves, they vastly prefer to utterly
break the target of their vengeance while letting them live, and telling them that they, themselves, are responsible for what happened to them.
The saying that revenge is a dish best served cold very much applies when it comes to metallic dragons.
So yeah, this Taylor would rather they live. She is good. But good does not mean soft or even nice.
"May you get what you deserve" is a curse.
That it is. And as I said, for all that I have no sympathy for either of those two, but what was done to them was beyond what they deserved.