Why is Minfilia so darn hot?

[Ranzan]

snip

Thats the thing he and she are doing the exact same job. She has as much of not more influence then him. She is actually more important to the story then he is. (She has echo)They made two characters for 1 job and don't know how to write their way out of it. And truth be told her coming back will be the same as it was before. Two characters doing the same job unless one of them is getting a MAJOR character overhaul. (Likely Minfilia)

She may as well stay gone because she has no role anymore. Primals, politics, coordinate the scions, one person job. No need for 2 people when it's been proven one is enough.