It is true to say that if Vettel was faster because he was in a more aggressive engine mode, because he wasn't managing his temps, or because he was deploying in one long burst all he way down to turn 2 and letting the turbulence protect him through sector 3, he may very well have contributed to the failure, especially if stopping the car when it was already running very hot.
It was an insulation failure which led to his retirement. That's not down to his driving.
And any driver using unauthorised engine modes during a race would have the engineers shouting down the mic pretty damn quick. It's pure fantasy to blame Vettel's failure on this