I thought Luther came over well.
He started at Hudds RU, where his father became a coach because of Luther's interest, despite being a soccer fan (dad that is.) He was also on the Giants books.His school in Hudds has produced other professional rugby players. His mother contacted Stuart Lancaster at Leeds, because she thought he wasn't getting a fair crack of the whip from the Leeds talent spotters & he invited Luther for a trial.Things progressed in union after signing for Leeds.
He didn't mention private schools explicitly in the interview, but I doubt his school had the RU connections of St Custard's et al. I thought Rob Scotch Bonnet interviewed him fairly.