No specific problem with the font choice - it's readable, clean and modern as reflects their (self-)image. Given their financial problems, I'm not entirely startled to see them using a freebie font - at least they picked a well-designed one. I'm not too keen on those apostrophes, though, and the spacing around the top 'r's' looks very off. Not awful, but the whole thing is lacking in flair.

And using a generic font is a mistake, as you say, for any organisation that expects to be mocked and parodied. Anything that helps pranksters create fake Labour posters easily is a big mistake.

The Tories (Britain's Conservative party) found this out the hard way last election - within days of their poster launch there was a website that let people make parody posters.

Even though I am not from Britain (but from its neighbour to the east), I think the political party visual identities are rather nice over there. The trend of flat design has certainly hit the party headquarters in Britain. Labour use Neo Sans as their main font. The Tories apparently use Futura as their new font (a departure from Lucida Sans and Franklin Gothic). UKIP use Interstate and The LibDems use Helvetica. Don't care about SNP... Separatists.

Maybe I should have lent them the Ajar Sans thing that came out of a fit of will-it-go-boom-if-I-nudge-it-three-degrees-off-plumb applied to the Open Sans uprights?