Wow. I always thought of Turpentine as a deadly solvent to clean pain brushes! I guess I need to review your material to understand the concept.
You are right about biofilms: they are used by many of the dormant microbes which have found ingenious ways to secure themselves in hostile environs. I see this quite a bit in liquid cultures. Mycobacteria, mycoplasmas, chlamydia, algae, most protozoa.and some fungi. Fungi tend to plant spores in areas of biofilm produced by other microbes--I haven't seen behavior where they make it themselves (in my own observations), although I have seen them build "clusters".
In the past, I have worked with environmental medicine experts, who sent me plenty of samples to observe, and any time I found fungi, or yeasts, they tended to have properties which made them pathogenic and\parasitic. I have tested them against common strains, and found them to be quite aggressive, and did not interact with other microbes. In many cases, the pathogen found it's way into the blood, through macrophages. In one case I think it occurred as a result of inter-venous drug use.
I have yet to see a case where common yeast over-growth is observable in stool, or blood.