Vettel was never behind Webber, it was Webber who couldn't pass. Vettel's race was compromised because Red Bull favoured Webber at the the first round of pitstops to keep him ahead of Alonso and Vettel lost a chunk of time because of it.
I stand corrected, I miss read the quote i was replying to! However, it makes no difference to the fcat that it was needless to impose team oreder betwen the RB's! That is like justifying the Mclaren switch between DC/MH in Austrialia because the driver on pole didnt get into turn 1 first!