I bet if he could do the whole thing again, Mark would've given up on holding Seb to the inside and moved back over to the much cleaner racing line and either watch Seb sail straight on while trying to brake late on the dust or held-on round the outside to gain the advantage into the next corner. Still, Vettel shouldn't have assumed Mark would swing back on-line so soon after he was in front.
The after-race speculation that Mark was told to save fuel while Seb was told to keep pushing with Lewis behind (which the Red Bull boss more or less confirmed) does nothing to stop the belief that they'd prefer Vettel to be number 1.
At least the MacLaren boys livened-up the final few laps and showed how to execute clean passes on team mates.
