I think you're missing the point...

how is that less reasonable than rewiring tattletale and skitter into bed?

your thing is the standard redemption arc bullshit, thats a different thing entirely.

i suppose I'd be will accept transracial rune suddenly realizing she'd been black all along and only assumed she was white because of her skin... but only if she had been cluelessly acting black all along as a ship tease to the point everybody but her knows. and she finally gives in only after having it pointed out by her teammates that grue transparently isn't her nemesis as she claims, instead she has been dating outside her race and it has to stop, shes picking up filthy lesser race mannerisms (sigheil). she reflexively denies it, only to pause and realize the denial is true. she isn't. I mean sure its true she had been unwittingly dating grue for weeks, she sees this now, but she also sees shes been black all along. ^{(ashia cackles so hard at this she becomes visible, and danny calls skitter kiddo as arsemaster and coil team up to be snidely whiplash, but then skitter uses her tremendous willpower and munchkin to fly them all to safety with gnats. meanwhile contessa dooms an entire universe on the path to a better hat, and then we cut to lung on his lazyboy declaring the reader asian, except browbeat who everybody forgot about. the end...except then jack slash shows up)}