The thing about supernatural phenomena is either they are real or they are not.
Maybe telepathy, remote viewing, prophecy and other “miracles” are possible or maybe they are not. It would be remarkable if at least some of the things we now call “supernatural” didn’t turn out to have some basis in fact. Because it would mean we already know the exact limits of what is possible in the world. This claim in itself seems pretty incredible to me.
Reductive marerialists seem to have an obsession with dimissing the reality of anything that science can’t explain. It borders on superstition. But even if we grant materialist assumptions, and agree that only material things exists and have material causes, and there is nothing supernatural. Even if we grant all that, we still need to explain the mysterious fact of existence itself. In other words, even if we grant that there is nothing supernatural in the world, the very fact that the world exists at all is “supernatural”. We can’t explain the laws of nature by a natural process. They just exist, by themselves, or by an infinite mind? Any possibility is deeply mysterious, and supernatural.
In a way it is true that there is nothing supernatural in the world, as such, because everything about the world is deeply supernatural. Not just parts of it, but its very existence, and everything about it.