It is pointing out the obvious.....yet theists appear to be quite unwilling to address the issue.
Even now as you dodge away from it by saying 'it isn't even the subject.
It is related to faith and belief. It is one of the central issues.
It is in fact related to 'why and how beliefs differ,' but I don't think that theists want to deal with it because it puts the whole efficacy of faith as means to truth in question.