rewatching Mori's concert made me discover some kino
her first song was Unravel, followed by Overkill in which she finished with the long note into falsetto switch to extend it
which is the same thing Kanata did in her famous Unravel cover at
https://youtu.be/dYChYs1vzmc?t=123I suspect it might've been an intentional reference, considering their previous interactions