My two cents about this since I stan both girls.
I think Miley is right about what she's saying. People thinking nudity is worse than violence BUT...
1- I don't think Miley is seen as a bad role model because of just "titties", I think her drug use has more to do with it.
2- Bad Blood video isn't real life, it's just fiction, like all those actors who play rapists, murderers, etc. It's not real life so they're not "bad role models" for what they're doing in fictions like movies, tv shows, videos, etc.
3- I don't think she was actually talking about Taylor, she just used her example to explain her point (which is completely right) like she did with that LSD comment about Kendrick Lamar.
4- Rihanna, Nicki Minaj, Britney, etc have had videos like Bad Blood so this could apply to everyone so these stans coming saying "yaaaaassss, spilll, queen" are just
