It's a stunning matt gold proof but so many coin collectors have noticed quality issues. A number have collars that are wavy or razor sharp. Royal Mint's QC is not up to snuff on these low mintage coins. I would personally trust Numi more than the Royal Mint for resolving any issues. All the proofs I've ordered from him have graded 70.
Regarding 3:54, the Great Engravers Benedetto Pistrucci Saint George and the Dragon coin is actually for this year 2024 rather than "2023" as was misspoken in this video.
I had a silver two ounce Pistrucci St George .. but it had multiple frosting breaks .. including most of the lower front leg of the horse .. so went back for a refund... It's a sad day , when even the original Mint online pictures show coins that have frosting breaks and other issues.. which they did with this coin..