Yes. Google designed Project Zero to "pressure firms into dealing with security problems more quickly." A firm policy with unambiguous enforcement has its advantages. Muddying the 90-day deadline with questions about when (and for whom) to make exceptions weakens it. For example, in the future, I expect Microsoft will not wait the extra two days in the event of a security disclosure from Google.

One may disagree with the 90-day policy to begin with. I, for one, think it should have had an exception process built in. But while these are Google policies, not laws, I respect them for adhering to published protocol. Even when it was difficult.