I wonder if people think that because society has progressed it shouldn't be a big deal. But, that's just it. It's not a big deal anymore. That boat sailed long ago. They ought to have taken a crack at it in the early 90's when the issue was more contentious. Fortunately, society has evolved (notwithstanding the bigots tagging behind, of course). Unfortunately for Trek, it didn't take advantage when it was more relevant. Now, inserting a gay character simply because it hasn't previously would seem awfully tacky.