Okay, ignore athletics. What about the BBC paying John McEnroe to commentate on the Wimbledon Ladies final? No credibility, surely? He's never played women's tennis.
What about Peter Aliss doing the golf? He's never played professional golf at all, men's or women's - no credibility surely...
Do you disagree with Michael Johnson being asked to provide analysis of a women's 400m race, or Paula Radcliffe giving her expert opinion on Mo Farah's London Marathon attempt?