I saw it as the least intrusive method for addressing the issue. I know it used to be that some players didnt like to use every upgrade on every MM, so this would avoid that to some degree. Also, it incurs a cost, though slight, to the player. Like the KB->KD IO. I suggested doing it as a set, so there might be some reason to ever put slots in those powers. As to the necessity of resummoning mid fight... I have had to do that, and having one less step to help keep my teammates alive would be nice. I can't necessarily leave the fight to resummon if I am using my secondary to support the other players.