There wasn’t a block voting, it just didn’t impressed the audience, left them indifferent. An act need to provoke a feeling not leave you indifferent. At least that ridiculous Belarus dance provoked amusement, Israel didn’t provoked anything at first impression (and most viewers saw it for the first time last night) Switzerland act was pretty cool with that whistle, you remember it. So one song was funny (Belarus), another was cool (Swizerland), another impressive (Austria) ,another was beautiful (Norway), another " lol...what's this?" (Poland) etc.. but Israel? nothing .... you cannot find a proper word to describe their act.
later edit: I have nothing against Israel, my vote wasn't political (I voted for Norway and Malta), I really didn't enjoy Israel performance. Whether you believe me or not, I'm honest and I understand why Israel didn't reach the final, why wasn't appealing for the public. I'm a bit curious about how the juries voted, because is different, they didn't saw it for the first time, like most of the audience.