Should we stop printing books with positive quotes on the cover?
Should we ban established authors from expressing their opinions in public?
How do we even determine which authors are successful enough to warrant a gag order?
King didn't call a press conference to tell the world Meyer sucks. He was giving an interview, got asked a question and answered it honestly. If the article misrepresented his views then that's a different story.
It's not like she hasn't heard the same criticisms before. Everyone's just up in arms because it's Stephen King but given that Meyer claims that she's never read Vampire fiction before, she probably doesn't even know who he is. She should just thank her lucky stars that they didn't ask Harlan Ellison.