Earlier quoted context omitted.
It's a fairly stereotypical British trait to be self deprecating. If we were singlehandedly saving the world from a rogue asteroid the general sentiment would probably be "let's hope we don't mess this up".
Sadly, they are being realistic. The current UK government is riven with incompetence and cronyism. They couldn't organize a piss up a brewery.
I'm not saying that the government shouldn't be kept in check, but the fact that the UK government appears to move with all the speed of a striking slug appears to be the fault of the system they are required to follow, not the government itself.