Yes the car is fast but I think Vettel is super quick anyway. You can see the way he flicks the car through chicanes and gets those fastest laps/poles.
BUT the brave part was the team and Vettel could have destroyed their strategy by being a little impatient.
I do say that we make our own luck, however, I think Vettel went to see a soothsayer. Vettel knowing that the outcome would be success, just went for it.
On a serious note, that unfortunately for Vettel didn't disprove his doubters.
I also think that the parc ferme rules should apply when a driver has been penalised. Being penalised should not give the driver any advantage (changing set ups such as engine maps etc).
If Seb had a cleaner race, even with the safety cars, my opinion would have been a little different. He looked a little 'mid-field' if you ask me.