Bonnie I would agree with you that it was cool that she was true to her beliefs and quietly left....
Except that she took it to social media. She had to let people know that she did it. Which to me screams passive aggressive publicity seeking. That may be cynical of me, but that's how it comes across imo. Others may have a different view on it, and that's fair enough.
Regarding the performances......
So I watched the Beyonce and Jay-Z one last night. While I can understand that some people feel that it was a highly sexualized song and performance and be offended by that, I would offer another point of view. It was a performance by a married couple. A couple that has been together for a while, and who's highly sexualized performance was about being with each other - their legal, rings and wedding ceremony spouse. So in a way they are promoting marital values. I think the most offensive thing about it was that they let Jay-Z have a mic. May be a marketing genius and a music mogul, but he is really a horrible rapper.