“we got a request to cancel your subscription. We did that, but if it wasn’t you who made that request, or you accidentally unsubscribed, click here to revert that cancellation within X days”.
And if you're unlucky, you're going to get one of these every day for every one of your subscriptions. All it takes is someone who doesn't like you and who knows your email.
True, you'd be in for some more clicks. I'd still prefer to take that risk, as it is way more work to find out cancellation procedures for the ever-growing list of paid/subscription services, employing more and more dark patterns to extract "value" out of you.
“we got a request to cancel your subscription. We did that, but if it wasn’t you who made that request, or you accidentally unsubscribed, click here to revert that cancellation within X days”.