Sleeper is an easy kill, i will grant you that. However there things that can be done to the game mode to make it less effective. Take the ability to see through walls, or who has more motes or the over shield. They are all things that could be done. Now here is what I know. Sleeper will get nerfed and you will be happy for a few weeks until you are getting lit up by the next weapon that is considered OP. And that WILL happen. It happened for years in D1 and it was nerf/buff fest every week as they tried to appease everyone complaining. This appeases everyone short term only. I am not great at PVP but sleeper is not a big issue for me because I actually use my brain when I hear an invader is heading over or about to head over.