I agree with you that it wasn't necessarily good parenting, however, in my opinion I don't believe she was terrible, as she sacrificed herself for the greater good.

I think that Kuja is the most sympathetic villain for me. Even if his story is a bit unbelievable, at the heart of it, it's about being used by the person who is supposed to protect you/your parent. He finds out that he was never even cared about, and was in fact regarded as a failure.