Right? The way this reads it seems like one person set a flag incorrectly, something I'm sure we've all done numerous times. And there were no checks down the line to catch it.
Hi, this is Mike from Atlassian Engineering. You are right that the checks need to improve to reduce human error, but that's only half of it. I don't see this as human error though. It's a system error. We will be doing some work to make these kind of hard deletes impossible in our system.