I don't mean offense but it seems almost as arbitrary as complaining that additional purchased game content or whatever the acronym is destroys whatever game it extends when you had all that fun along the way, maybe even to the extent that players/you wanna play a little longer.
Harmless doesn't even begin to cover that outside of complaints that its unfair socioeconomically to extend the cost of playing such that kids who were "lucky" to even be able to afford merely the game are being discriminated against economically or whatever either in isolation or with reference to their more fortunate peers. Im getting a bit sidetracked here so I won't be taking notes on this, unfortunately :( but I do think its pretty much analagous in my opinion.