You will know better than I, but it looks like Whatsthescript ran the same race he had in his previous.
And while I am not making the argument that the drug and steroid policies had no impact on this years Breeders Cup, but when nearly every Grade 1 east coast dirt horse runs an X in a two day span, my suspicions are that the surface had a greater impact on results.
One other question, was the rail dead at Santa Anita? If I remember correctly, Midshipman was the only pro-ride winner within the 3W path.