This petition is as silly as those parent or church groups who petition because Marilyn Manson or Judas Priest, or any other inoffensive rock star is playing their town, "corrupting youth", and "spreading satan's influence". Let Anita work on the game in whatever capacity she has been hired for. If it results in a shitty game, she won't be asked back again.
This petition (if successful) amounts to censorship. And censorship is bullshit of the highest order.