Star Trek now tries to reflect a post-colonial, post-first world man's universe where death is a larger part of the landscape than the bourgeois life we all generally inhabit. It's central Africa Trek, Middle East Trek, central America Trek, Baltimore Trek!
But seriously, how much death was there in the Original Series, in Deep Space Nine, Enterprise? Well not perhaps the 6 billion of Trek 09, or the tens of billions in recent Treklit. But I think regarding the massive destructions and deaths in Treklit reflect our zeitgeistal desire to have a lot more death, even though it is seen through the first world lens of a post-HBO creative freedom and a post-9/11 engagement with mortality and violence? Rather than the day to day, nothing new, state of life in the territories mentioned above.