This is a tough fight for SSB Shihori since this version of the character never experienced her own trauma that occurred after the loss of Sorrel. That Shihori may have been gravely wounded and down an eye, but she got a helluva zenkai and went completely vigilante as a force for good. She fought constantly and hunted bad guys down for 7 long years.I quite like vigilante Shihori, but you're right, she's skewed evil rather than good, she's like Bunnygeta in reverse, heading back towards being a planet destroyer.
This SSB Shihori has had a much more peaceful existence, BUT she's had something the other two did not during all that time. The time and tranquility to focus on herself and not only improve herself as a martial artist, but grow into a much wiser person through guiding others as a teacher. She's becoming the best version of Kitsune and the fox couldn't be prouder!