I have, and I would say no cigar. That just isn't the complete answer. I will definitely agree that Soderling's play was the reason he won that match, and not because Nadal played poorly. But I will not agree that Nadal was playing his usual high level of clay court tennis. It just isn't so, IMO.
Roddick is a different story. That guy throws the kitchen sink at Federer and nearly every time Federer just steamrolls him. If I recall correctly, Roddick was serving well, and not throwing in a lot of doubles, but Federer still just ran rough shod over him. That's why that is a great match. Roddick did do his part, it just was made to look pathetic by his opponent's superior play.