Allow me to rephrase, it's ill-explained to the general public, almost certainly to conceal the fact that it would be a cold day in the fiery abyss before the likes of Rick Hendrick, Roger Penske, Joe Gibbs, Richard Childress or Gene Haas have to worry about any of their charters. But I'm almost dead certain that the likes of Tommy Baldwin, Bob Leavine and Archie St. Hilaire may well be thrown to the wolves for the sake of expanding the big-budget teams, as they would be the ones most likely to be affected by "lack of performance".
The explanation of the rules (to the extent that they've been explained) states that NASCAR has to make the decision to strip the charter from a team that isn't meeting the performance clause. It's only after this that the fate of said charter falls back into the hands of the RTA.