I appreciate your urgency to try and "educate me" (and insult) but it is in vain, as I am not only aware of the story, I've actually -read it-. I am a large fan of horror genre and it's multiple forays into media both antique and recent.
I should have possibly used "A Modern Promethus" but that is not a term many younger generations know or can relate to. "Frankenstein" is, I choose something easily identifiable in story and concept. To call her just a stitched corpse would be taking away the human aspect of 'Adam' Frankenstein and his creator Victor in the story (Calling -anyone- just a corpse is insulting in our own lives, is it not? It's no different for this fictional world) . Adam wasn't just a corpse, he was something more and in the world written for Claudia other reanimated characters are as well.
In their world "monster" is a relative and useless status to be called as -everyone- is a monster. So why belabor the fact she's a monster? Why not choose the one type of monster that is easily identifiable both in looks and story?
It was not a shortcut. It is not a disservice to English or culture. It is a very thought out choice made by a simple artist displaying a trait of this character in order to condense things down for easy reading. If it is not to your liking them you are free to simply leave well enough alone.
Duh, no shit. Culture and Language have nothing to do with it, and you're hella reaching.