Umm, it was advertised a bit on the BBC.
I have always maintained that Eurovision was mostly not political... I mean some places you just can't stop from voting for each other (like Cyprus voting for Greece), but I think generally it was less about politics and more about tastes. Like, obviously eastern Europe would vote for eastern Europe, because they have similar tastes in music and so presumably all the countries liked each other's entries. And the Mediterranean would vote for itself for the same reason.
This year, I think people have broken out of block voting for 2 reasons:
1) The rules on voting changed, and each country had a jury panel that also submitted votes on each song, based on its qualities etc., and these votes were counted along with the public votes. This added an element of "expert opinion" to the voting.
2) This year the quality of entrants was much higher (a lot of countries took it very seriously after last year's show, not just Britain), so people were more inclined to be impressed by the songs and decide to vote.