You do have a valid point. For instance I have no idea what Tomescu was "sniffing" during her marathon. Smelling salts?? Weird.
Still, I don't think there have been any Kenyans who've tested positive for anything emanating from Boulder.
Brendan Reilly is considered to be a reputable agent who's made his niche with internationals. He speaks fluent Japanese and has worked with runners from Japan as well as numerous internationals in Boulder for years.
Ask him your questions, you are both adults.