Conclude what you will from that. For me, it points out that negativity can be harmful even to successful authors.
Realistically, the amount of venom tossed in Ms Meyer's direction was grossly disproportionate to what most authors - particularly those on forums - are going to see. She was, in essence, a lightning rod for the mean-spirited.
Also keep in mind that what you consider to be "honesty" might very well be, in all likelihood, just your own personal opinion.
Unless one is talking about SPaG, that's all any critique is. Just because it's opinion does not negate the need for honesty.