A perfectly harmonious world may not be possible for Žižek, but a different one is. In this time of despair and ideological closure, that is much more than nothing.
Though he does refer to very recent pop culture and political examples, the problems that Žižek addresses are sadly likely to prove durable: environmental crisis, growing economic inequality, problems surrounding intellectual property, and advances in science that challenge our sense of what it means to be human.
Awkwardness as Kostko describes it emerges from the violation of a mostly unspoken norm of a given community. It draws its participants in, spreading from one person to another.