I feel like this reluctance to even accept the arm is Rooster Teeth trying to tell fans that Yang is DONE. She's not ready to get back into the fight, and by the time the fight may find her, Yang may not be even able to put up a good one, what with her PTSD. However, even though I think it would be a mercy to kill her off or just end her storyline, something worse is going to force her back into the fight.



And that something will either be the White Fang knocking at Yang's door or Neo coming for revenge for Ruby's part in Torchwick's death. Either way, I just feel Yang will be targeted by the villains to get Ruby, Taiyang will take the bullet, and Yang will realize that her moping around got her father killed (either that or Raven will call Yang out for it, saying that Yang could have fought harder or tried to compensate for her injury instead of just sitting around), and Yang will finally get back in the fight… only to be leagues behind everyone else (Ruby's far ahead of the rest of her team by the six months of grinding in the wilderness, Weiss can at least get training with her Gylphs at home, and Blake has had opportunities to train), suffering a nasty case of can't catch up (Yang's most likely let herself go in terms of physical activity and even if she starts now, she'll have difficulty relearning her moves even with the new arm), especially when it matters (as in, Yang will be terribly weak against rematches against Salem's weaker members, where I predict she'll be brutally curbstomped by Mercury (who finally reveals just how much he held back), and possibly dying by Mercury or Adam's hands (Adam telling Blake that he told her she'd be the first), thinking she was ultimately a failure in her last moments).



That's why I say it's merciful to end Yang's story, here. Satisfying? Hell no. Makes sense to the story? Most likely not. But merciful? Probably.