That link about the Italian Rosas being interrogated in Kenya by a narcotics agency is a lot more significant than this garbage innuendo about non-Olympic qualifying British runners. Just last year, in an article from April 14, 2015, Rosa Associates, along with Volare Sports of the Netherlands, were banned for six months in Kenya.
"What precisely has Athletics Kenya done?
It has banned Rosa Associati, led by Italian Federico Rosa, and Volare Sports, led by Gerald van de Veen of the Netherlands, from working with any Kenyan athletes for six months “so that investigations can be carried out and when the results are out we will decide whether they come back,†according to a statement by Athletics Kenya President Isaiah Kiplagat. Between them, the agencies represent some of the world’s leading marathoners, including world record holder Dennis Kimetto, Wilson Kipsang, Geoffrey Mutai, and Priscah Jeptoo. Rita Jeptoo was managed by Rosa at the time of her positive drug test."