Valuable info! Me too i have been rather on the impatient side, and after the first 48h passed, which was way over any expected ETA for the launch i got a bit worried. But what is a week delay in any it or other technical project, it's just nothing!
Doing to much security tests? After all, there has never been anything similar up, so it's one thing testing the chain in a test-environment and another thing to audit a complete chain, so a few days more are a well invested time.
And maybe we shouldn't be overcautious, but the situation is maybe not unsimilar to security checks on the airport, which are also senseless and a mere hassle, but in the event, that anything goes wrong, you wouldn't want to be in a position where you have to admit, that you didn't try anything possible to prevent the issue. So lets be confident that one or another day wouldn't hurt. I am quite relaxed now.