How nice it is of Google to decide by fiat to impose their standard on everybody else without consultatin (I know Eric Schmidt is on record as saying that he doesn't believe in privacy, here we have a prime example).
However, at least they are handling this better than the way Facebook does. If this was Facebook they would have (a) just done it without giving advance warning and (b) would have flipped everyone who was private over to public.
At least Google is deleting the accounts rather than outright exposing the info.