I considered this aspect prior to my comment. Even healers must face the necessity of having to destroy or kill to serve the greater good. I'm not saying he would be happy about it.
It would seem complex, but it's not. Fran only has one true choice here. The 3,000 men Fran has will not be nearly enough to stop Edith. He has to take her side. This will also serve to help mend the tear between him and Edward.
It was an oddity the twins could only be healed together. It does raise the question what if one hadn't survived? While this is all good news so far, this little initial wrinkle makes me wonder if other unforeseen issues are ahead.
Now we see Micco and Chase's bond was privately and formally sealed as blood brothers. The texter must be Danny. He was the one making these accusations before.