Finally, the Met Office is caught out making statements about trends which it is unable to substantiate with statistical analysis. Sadly, it isn't as simple as saying that they are wrong, and there is no trend. All we can say is that they seem not to realise how easy it is to pick out a trend by eye which is in reality just random variation.
The Met Office has a duty to present their analysis of the data in a robust way. The dialogue linked in the article implies that their senior staff have no comprehension of what would be needed to achieve this.
We do, however have plenty of examples of their PR being interpreted to swallow the inaccurate interpretation so it seems reasonable to push them to issue a clear and unambiguous retraction of the idea that we have a rainfall trend that suggests ANYTHING. (other than a long term 1% per century increase, which could well correlate with the LIA, but is close to irrelevant in terms of panic-now)