Every country go through a period of eurovision CBA, and put no effort in. Currently, the UK, France, Austria, Portugal, Ireland and one or two others are currently in that phase. The UK had the chance to get out of that after 2009, and some would argue 2011 as well but we didn't. Our time will come again. Germany went through the same period up until 2010, and from there have done well (with the exception of this year) Even Sweden have gone through that same slump, Also look at Norways record it seems that one year they do well, then the next its either don't qualify or a disastrous result.
We just have to hope that eventually the UK will get a grip and realize again of how much of a success eurovision can be for our country. Someone at the BBC will realize it eventually we just have to hope we don't have to wait another decade.