Surely when it was clearly pointed out to him his error, and it was obviously significantly less than 10 yards, then he should have corrected it, but like most refs simply, stubbornly, refuse to accept he got it wrong.
Even the Donny defenders had to nudge forward from the 9 yard mark to stand on the line, again a sure indication the ref got it very wrong.
Sarge, in the rating above the option of giving him a 8, 9 or 10 should be removed.