Not sure about the "jump" theory here , as it's risking the win when they know they are vulnerable in dirty air .

The poor starts may have been more due to them having to turn up the wick a bit with Ferrari closing in .
As you add more power , you will naturally get more issues getting it to the pavement .

If you add that all the teams should have been aware this was going to happen at about the same time , one would expect more issues throughout the grid , as others would surely be doing the same thing , and we didn't really see that , so I'm a little skeptical .