Because we live in a society that demands people live above their means. The hate comes from the fact that Greece are humble enough to know that they can't compete unless they play a defensive style. But they won't be left alone, you have the likes of @Derek Sketer , who is probably in massive debt on countless credit cards, demanding they play like Brazil in their heyday. I say ignore these people as they know absolutely nothing about humility.
Well done, Greece.
Ironic considering Greece's financial situation