While I agree that “tear the boat apart” is probably not what should be said, tracking down a minor ground fault can sometimes require hours of testing, including separation of the neutral buss branch lines. I agree the fix is usually trivial, but in some cases replacement of hot water heater or pump AC pump motor may be required. Tracing down a ground fault dose require the right test equipment, and a sound troubleshooting process to efficiently narrow down the problem and isolate it. I think you did trivialize the complexity and expense that is occasionally associated with locating and fixing a ground fault problem.