Am I overthinking this shot?
My immediate impression is that she dodged the knife, and killed Konoha. Her secret ninjutsu is shapeshifting and she managed to fool Satoko into thinking she's Konoha. They killed her, leaf'd her, and went home. It feels like a purposefully open ended set-up for a sequel. If that's not the case then why did they include this shot? Konoha isn't raising her knife here, she's stabbing and missing.