Not sure whether or not it's officially confirmed, but I think I've heard literally nobody who believes Uran made an honest mistake there, it was way, way too obvious
And, I mean, it's Vinokourov, few cyclists are more suspicious than him as both a cyclist and a team manager. The term 'he must have received a letter from Vino' whenever a disappointing Astana rider suddenly improves out of nowhere is rather well-known, for example
That is without even mentioning the long, long legal process about his LBL win in 2010, which he allegedly bought from Kolobnev (who basically rode like the perfect leadout for Vino), even though the 150.000 euro that was sent by Vino to Kolobnev was explained away as merely 'a loan to my friend'