Re: You make it sound like dystopia is a new thing.
Star Trek may have tried to be utopian, but Bob H appears to be discussing other series since he namechecks two of them and suggests 'current trends'. Since there hasn't been a new episode of any version of Star Trek (excluding the recent movies - are they 'canon'?), my guess is he's talking about dystopia in science fiction in more general terms than Star Trek.