Regarding the suicide, I really don't know what either side is trying to get from it.
Yes, it appears that the kid's religious beliefs were a motivating factor.
No, this is not evidence that teaching kids religious beliefs are harmful, since it's unlikely this was the sole factor, since the vast majority of religious kids don't commit suicide, and since people commit suicide for a wide variety of reasons, which could very well encompass lack of religious beliefs as well.
Really? I can see not being certain, but lacking any notion of whether the belief in an afterlife where she would meet her father played a role is really pushing it IMO.