Even then, a lot of the stuff that came from the X-men has been done so many times, not to mention in non comic book stories. All the heroes in the future get fucking murdered or are imprisoned. Someone goes back in time to warn them so they can stop something that's a catalyst for their deaths and the world's future. They are hunted, usually treated like 3rd class citizens. The main characters in the present time line have to find some way to save the future.
It's been done to death, and it was obvious ever since future Hiro's appearance that they'd take the series in that direction, so the episode wasn't much of a shocker for me, especially the whole "kill all special people" bill, which felt all too familiar.
Good episode tho.