The RB6 has so much speed, they should be able to add some robustness for a small price; maybe the exhaust should be made a little thicker. I am sure they wont lose much speed seeing as though it wont affect ballast placement much since it's in the middle and so low to the ground.
This car is a beast though, the pace was real on both high and low fuel. The stability and grip looks great as well. Newey may have done a deal with the devil to create this double edged sword called the RB6, but he had to pay the price with reliability.
All in all, this is a small problem which can be fixed. The rest of the car was working very well. Tyre wear was ok too, since Vettel was at the front in clean air.
I am not so sure about Webber in the back. He seemed to be pretty slow , but we have to wait till the lap charts for the drivers come up before we make an assessment.
Easy come easy go for Vettel, i feel it for him, but he cant expect to just run away like that and win races and everything is honky dory.

There has to be a balance.
First race out of 19 anyway and he bagged 12 points.