Are we not rewriting history with Twice Over? Having ran in the Craven they swerved the Guineas to go to the Dante. Why would they have run in the Dante if they weren't aiming at the Derby? Didn't he come back sick after York?
Not quite rewriting history. My clear recollection is that there was a general assumption, based on his Zetland win, that Twice Over would go for the Derby but Cecil said many times that he wasn't convinced he'd stay. The horse may have been sick after York - I can't remember - but I'm pretty sure Cecil had already said after his defeat in the Dante that he wouldn't go to Epsom and cited lack of stamina as the reason.
I'm only making the point that Cecil will do what he thinks is right for Frankel and he looks highly likely to ignore the inevitable calls for the horse to run in the Derby.