Decided it bothers me enough when watching darker videos to send it in for repair.
You said you couldn't even tell in normal usage and after running the test you didn't even know there was an issue you HAD TO ASK if there was. If you wouldn't have done that then you wouldn't of had any issues with display. You're being a little ridiculous. I hope you keep sending it back because you aren't going to get one that "passes" your test.