I'm not an expert on infection control, but I work closely with people who either work in the infection control department of a hospital, or are running their own infection prevention and control consultancy. They live and breathe this, and I am only repeating almost verbatim what they have explained to me. I'm pretty sure they have "thought this through".

So believe what you want, but I'm gonna go with the experts on this, not someone who's only support is his own conjecture lol. They're not even the only ones saying this. Go Google some reputable sources yourself and stop guessing.