As I mentioned in the other thread, I think it's an amazing idea and definitely should be a thing for Minthara.

Even under the Absolute's influence she's an intelligent commander who is quite calculating and pragmatical because she refuses to raid the Grove unless the player helps her with the gates, even yells herself at the player that she is not expendable and won't lead a suicidal charge, so her retreating makes sense after seeing the battle definitely lost because she is not some suicidal maniac and does not see the raid as her failure which is why she does not expect punishment whatsoever at Moonrise.

Her being cautious is further proven by entering her mind to save her in Moonrise Prison; if the player tells her to fake obedience she'll tell the player "I'd prefer to make these bastards bleed, but I trust that you speak from caution rather than cowardice."

[Linked Image from i.imgur.com]

Everything fits perfectly with the established lore so in my opinion this would be a far more natural and interesting way to ensure she is in ACT 2 which also plays into her personality and character. And more importantly the player would get to experience the raid itself which is the biggest moment of ACT 1, which currently the player has to avoid if they want Minthara in ACT 2.