She is responsible for her post, and when you publicly make a post dragging an institution through the mud with limited info, you will get both negative and positive feedback. If she didn’t want to cause confusion she should have shared the full story. Instead she just trashed BYU by making the illusion that they won’t let her get tickets unless she “donates millions.”
Everyone loses loved ones. Not everyone bashes institutions who have helped them make amazing lifetime memories when those loved ones pass on.