While i can see where people who have not got TTK are coming from it would be annoying to any TTK customer if the base game got content they paid for for free. I would say you are allowed iron banner but the fact that non TTK players have such a disadvantage in light and level i don't think it would be a good idea as people would probably complain more than they are already doing so. As a TTK purchaser i feel that it is necessary for bungie to do these actions so that the game can leave behind the atrocity it was on launch (i still played it loads but nobody can defend its state on launch). If we want a game to progress over the years the old content needs to be updated so that it is still relevant. Otherwise we might as well just buy the second instalment of the game. The forum community is toxic but in-game most people are lovely :)