So what are you trying to prove? That you can over gear for an instance?
The SM version of the op is meant to be for fresh 50's, ideally daily purples or tionese. When you're going into it in BH/Rakata it's definitely an overkill.
I think the point he was trying to make is that he thought the fight shouldn't be ridiculously easy like that. Most Campaign geared groups can easily 4 man the entire KP SM. So the first response is the right one. This mode is really for people to understand basic tactics as fresh 50's and see the story. There is a significant jump in difficulty between Story Mode and Hard Mode