Man, this hits different because I've been on the other end of that. I used to work QA and I can't tell you how many times I found a problem that torque seal literally hid from me. The worst one was a jam nut on a flap actuator that had backed off just enough to pass the torque check but the seal was still intact across the gap, so the visual looked perfect. The thing people don't talk about is that torque seal also gives you a false sense of a paper trail. If the paint is broke, you assume somebody checked it, but the paint being there doesn't prove the torque is still good after vibration or thermal cycling. Ray was right to call it out, and your point about trusting the wrench instead of the paint is the real lesson.

Why worry now if it's bone dry? The washer swap was the fix, that's normal stuff. Just keep an eye on the ceiling below for a few days, if it stays dry you're fine.