I hope they can test and launch with the date but i agree... its a double edged sword not meeting deadlines or releasing broken code but i think postponing is the lesser of the two evils. Make the best of a bad situation and show maturity saying we are sorry we didnt meet the deadline but we guarantee we will release our product to the best of our ability.
to add to that, they didnt meet their May 4th deadline either but i dont recall people getting up in arms about that oddly enough.