> Okay sure, but what happens when a high CVE is discovered that requires immediate patching
I'm pretty sure, once cooldowns are widely implemented, the first priority of attackers will become to convince people to make an exception for their update because "this is really really urgent" etc.
At least it’s a bit harder because you need to finesse the manual review somehow; and it’ll leave a bigger paper trail. It’s not a perfect defence but it’s an improvement.