Why was Lottie wrong about Shauna’s son?

This is something that I think about a lot. All of Lottie’s predictions are usually correct, except this one. She was fully sure that Shauna would have a son( to the point it freaked Shauna out) that he would bring good things, and was preparing to welcome him, so why did this not happen? The logical explanation is the dire circumstances obviously did not allow the baby to survive, but I don’t want to hear a logical explanation lol. Lottie was so sure Javi was alive, and Javi somehow managed to survive against all odds and she was right. Lottie knew about the Red Sea and danger that Van would encounter. She has some sixth sense and powerful intuition. If we were to believe ‘the wilderness’ supernatural narrative is true, what do you think sabotaged Wilderness baby’s chance to live?