Steven Universe isn't made for teens+. It's made for kids. So the focus is put elsewhere. The Ana comic was giving back story as to why Ana fights. Why she does what she does. For love. Just so happens that her love is for another woman and not a man. Destiny is rated teen. Teens which are able to understand more about the world around them. So this little thing about "brainwashing kids" has nothing to do with Destiny. If Ana loved a man, this Ana comic would not have blown up to became the issue it is now. Ana loving a woman, is a part of HER story. The comic is about Ana's life. Should that not include the love she had? The reason she fights?