Fascinating that that announcement and what's on the page you referenced don't quite match up. Observe:
N.B.: "may now offer..."
You´re right, missed that. Thank you very much for pointing it out. Well, now I´m puzzled at Apple, because there is no "may" in this situation. Either the OS updater gives you the choice or it does not. What "may" even means in this context?. Its crazy.