I had a problem picking the genre of the story.
When reading the logline in its current draft the first half of it describes an environmental corporate movie where as the second half describes a scifi natural disaster one. The combination and the timing in the read creates a jolt as the reader is preparing for one genre before the story changes to another very quickly.
Well demonstrated by Richiev that the inciting incident needs to come first and the inciting incident is the fungus infection not the oil spill. This way the scifi natural disaster element informs the reader upfront what to expect as well as fulfil the function of a structured plot element.
With mass infection type stories I find that the nature of the symptoms defines the genre as dramatic, horror or comic. I think that "...sex fiends out to inject their spores..." sounds comic/horror, is this the case?
Hope this helps.