They are limitations of budgets because exorbitant amounts of money was spent getting the games to run playable on old hardware. Most of the Dev budget was spent on QA for the old systems.
source?
This sounds like a bullshit figure, or at least a dishonest answer considering development *started* on last gen consoles so if a quarter of the development took place on last gen consoles there wouldn't have been any way to not have that cost magically go away.
