He mentioned eventually bundling old care packages and selling them at a low price, but yeah, the whole point of the care packages is "a bonus for consistent subscribers that doesn't take away from the free version of the game."
I don't really like it, because it costs time and energy working on the care packages instead of the game itself, but from his perspective it worked really well for getting the number of subscribers increasing again instead of decreasing following a couple of releases where the patron build was immediately leaked.