Not sure why you're picking a week, that's hardly enough to escalate it to the right team. You're going to have publically announced zero days. Even if companies hopped to you'd get rushed deployments. There needs to be time to schedule the update etc, see also how long it takes for things to spread across Linux distros

Besides, your point stands with Google's Project Zero preexisting 90 day period. & yet they get flak too about putting out this information (not that I agree with that flak)