I believe that the gut flora is likely one of the most important factors in our health. It I also likely to be key to the treatment of many disorders in the future. I do not believe that the risks should be mischaracterized by exaggerated stories based on a single situation.
It’s a mixed bag currently. FMTs should not be taken lightly. Even the ones for C Diff do not always work. That hasn’t stopped people from exploring on their own. The gut biome can also be changed with prebiotics and probiotics. Medical science is going to change radically.
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How Gut Bacteria Tell Their Hosts What to Eat - Scientific American
Also:
How Gut Bacteria Make us Fat or Thin -Scientific American