Uhhh! She had every right. Free will. No other reasons need to be given. I’m not debating with you I’m just shocked that you would posit such a silly statement “but I don't know why she rejected their offers so many times.”
Maybe she thought that listening to the official story would be a waste of time and that they would only try to pressure her. But knowing where the official story differs from what she personally observed, and what kind of changes in her reporting they'd have demanded, would have been interesting in itself.