I don't if you meant it as a counterpoint for what I said, but it really isn't.
The problem is that given any positive at all, the chance it points to a problem is still virtually zero.
If it was 6.8% of all tests as false positives and 2% true positives, probably people wouldn't have silenced the alarm.
If it goes off 8 times a day and 2 of them are true positives, then people have recent memories of having to fix problems pointed by the alarm.