Fungus in general is not well-understood at all. We didn't even realize until a few decades ago that it's pretty much the backbone of life on Earth. All of our research into it is highly specific (using fungi as chemical factories in pharmacology, for instance), but besides that, it's largely a very mysterious branch of life. In medical school, you learn about fungus as it pertains to a few common infections and some classes of drugs, but otherwise you don't hear much.

I wouldn't be surprised if it's just not something they're willing to speak on professionally because it's a huge blind-spot for science.