Nondual Claims About the Nature of Reality
I think the power of nondual teachings comes from their capacity to help us awaken to true nature of experience.
I think where nondual teachings falter is when they make claims about the nature of reality.
Even if the claims were backed up by good explanations, I still don't think making them is necessary.
Not if the point of nondual teachings is to help people awaken.
Because to awaken is to understand nonduality experientially, not conceptually.