I concure with Lawrence.
If it doesn't pass VT, it is rejected, end of story.
Reminds me of a D1.1 welder performance test report I had to review a few years ago. Under the heading of visual test results it said: "The weld looks like ****, but it passed X-ray."
The bottom line is that the welder failed (unless it was welded to ASME Section IX) the test if it didn't pass VT, it never should have been sent to RT.
Best regards - Al