Opinion, not necessarily fact, but my understanding of the "piss up in a brewery" outlook comes from Parliament, not the government. The structure of Parliament is that the opposition has to challenge everything the government in power says and does in order to keep them in check, even when the opposition has exactly the same views on the policy being discussed; this leads to arguing for the sake of arguing even when common sense would say "this is entirely agreeable to practically everyone".

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.