You do have a point on my example of a SAE car. However the same issues that faced that car also face SV.
On the SAE car we had a different design of headers from our previous cars. We had implemented the same push pull cable and shift mechanism from our previous two cars that worked flawlessly. Never the less the team failed to insulate the push pull cable since they had never done it before and the heat wrap on the pipes in the past proved to be sufficient. Even on the same car months earlier the cable uninsulated was ran without problem since it bend just slightly differently. For the four days the car ran without trouble and no issues were reported. The problem comes in that with four different people testing it over the different days, each driver would jump in and not have an idea on how the car was supposed to feel. Each of them simply jumped in and drove. None of them were aware of the head slowly melting the push pull cable leading to a small amount of friction to be added to the cable. Had the first driver got back in the car on the last day it would be very evident that there was more effort required to shift the car.
Anyways due to time constraints the car only received a partial tear-down, mainly to look at the drivetrain as it was the primary source for problems on the car. Never the less the small damage done to the push pull cable went un-noticed. Come event day yet another new driver jumped in. We had battery issues so we elected to run the car in the pits for an extended period of time to charge the battery after it was jumped. This idling with no moving air around the cable sped up the deterioration of the cable. Once the driver went out for his lap the increased friction cause the bolt that held the gear lever to brake. Once replaced it was discovered that clearly too much force was needed to shift the car and the problem was traced back to the cable.
Anyways it was not the drivers fault the cable failed, it was that of the people who prepped the car for the event. It was just a ticking time bomb before the failure occurred, and that ended up being at our event.
This carries over to SV header failure at Bahrain. I can guarantee that the header ended up on his car was defective and it inevitably failed in the race. It was just down to (his) bad luck the part ended up on his car. Yes the "bad luck" was created by the teams failure to spot the flaw in the part. At the end of the day SV does not control the parts on his car or how well they are installed. Thats why I call it back luck on SV in that he sometimes has part failures that are not a result of his driving.
If you want another example why not his front upright in Australia? I am not sure what incompetence cause it to fail, but it was not due to SV's driving. That same upright withstood MW smashing it into LH in Singapore. Sometimes your team or engine supplier deals you a bad card. We like to refer to this as bad luck.