The opening paragraph was the classic case of a journalist sort of taking the extreme meaning of one's quote. Al Sal basically says, distance running is more competitive than it's ever been so Mo's double is better than all other doubles.
Press Association wrote:
Mo Farah's double gold at London 2012 was the greatest distance running achievement in history, according to his coach Alberto Salazar.
"I would say that he did it against better competition than has ever been done before," Salazar told BBC Radio Five Live's 'Super Coaches' programme, to be broadcast on Tuesday evening.
"There is clearly no doubt. I know Viren did it twice, I know others did it before that, Zatopek and so forth, (but) distance running now is more competitive by far than it ever has been before.
"It is a much harder thing to medal in distance running now than it was 20 or 30 years ago."