For a mere $199.95 plus shipping you too can own two 2025 cents.... Jeez, danged hucksters never miss a trick.
Something else that never changes: "There is no Santa Claus in Numismatics." Lee F. Hewitt--Founder of Numismatic Scrapbook
Why? Lots of people have their own custom inserts, with their branding. I see nothing wrong with that. And the 2025 cent is a coin like any other, tons of moderns get submitted looking for a high grade jackpot. I don't see that NGC did anything wrong - they offered their service for a fee, just like they would for anyone else. They have absolutely no control or responsibility for whatever someone tries to market or charge after the coin has been graded.
That would make a nice error if it was on the coin. Not a bad error on a label for that matter either.