You make it sound like the Edmonds people were like "holy shit, we're freaked out by a sound, replace the drive unit." But what actually happened is they heard

You make it sound like the Edmonds people were like "holy shit, we're freaked out by a sound, replace the drive unit." But what actually happened is they heard a sound, took it to an authorized maintainer, and the maintainer was like, "Oh, you need a new drive unit." What does it have to do to count as not preemptive? Burst into flames at 70mph?