Seeing as anything that influences the physical world must interact with physical objects it should be clear that if supernatural processes and forces exist in some sense they must pretty much by definition be completely useless. I think it's closed-minded to dismiss people who believe in supernatural forces or entities, but for anyone to expect a supernatural force to be able to accomplish material changes of any sort doesn't understand what they're saying or doesn't understand the implications of their own beliefs.
Paranormal is a qualitatively different term. It means above and beyond the normal, not above and beyond nature. The forces used by ritual magicians are paranormal forces, not supernatural ones, and they influence the physical world by making unlikely events more likely. They are also amenable to scientific research to a degree, such as the Princeton quantum diode experiments. We still lack a good experimental instrument to measure consciousness, but once such an instrument is perfected empirical magical research should be able to proceed at a much faster pace than it has historically.
That brings me to the winged cat. In The New Inquisition, a slapdown of the skeptic movement by the late Robert Anton Wilson, he comments that in the early part of the twentieth century the Fortean Society documented a report of a winged cat. Seeing as I had no idea how such a thing could be possible I've often joked about it over the years, but as it turns out the joke is on me barring some sort of photoshop scandal. The winged cats are apparently real, the result of a rare genetic mutation.
In fact, polydactylism (extra toes) is common in cats, so there's no reason to think extra appendages are that unbelievable. "Wings," though, are rare enough that you don't see them very often, even over the course of many years. They are, therefore, paranormal rather than supernatural, and scientific investigation of this specimen may even tell us which genes are involved. Now, if some enterprising individual starts breeding these as pets and they catch on, what was once paranormal could become normal. Assuming that there are no averse health consequences associated with the "wings," I would certainly consider keeping one. It would make a great conversation-starter.
So I suppose what I'm saying is that magick is like a winged cat. It's rare enough that people don't have much normal experience with it, but with better tools and more advanced science it can and almost certainly will be investigated.