Yeah, but shipping is everywhere anyway. Twilight made ship wars popular, but people were squabbling over Angel vs Spike or Spock vs McCoy long before it was abusive and controlling vampire vs abusive and violent werewolf.
I fall on the side of Peeta, by the way. Peeta can understand and support Katniss through the aftermath of the hell she went through far better than Gale could, I think. Gale was too caught up in the revolution and vengeance and less able to deal with fact that the Katniss that came back fromt the Games wasn't "his" Katniss anymore. I think Katniss needed someone who could understand her broken-ness instead of adding all of his own anger and desire for revolution to it.