Hi Chris,
I fully agree with your viewpoint.
I always get angry when I read maintenance reply "checked on ground and found OK" as if pilots have reported a problem that never existed. It happened to me (again) this week when I wrote something in the Tech Log and departed with the same aircraft next day. I called maintenance to SHOW them the problem was still present. (for info ; the Landing Light remained ON when placing the switch gently to OFF - I had flown with the Light ON during 2 hours of flight)
Now referring to those Error Codes, as I said, I agree. But on the other hand, you would depart with water in your Fuel Tank on NG as it hasn't got any error code "7" displayed to the crew ?
Pat