It sounds interesting. Did you try the tests? They seem pretty expensive. I guess I'd like to see if it helps others first. Any word on results? I didn't see any in the link you posted.
One potential problem I see is that even if the lab finds something, you may have to convince an M.D. that the lab is legitimate and the test is legitimate so that they can prescribe whatever the correct antifungal is, if there is one. Not the easiest thing to do these days.