I guess what I'm saying is that phoney inscriptions can be produced.
I etched Led Zep rules! into a desktop in high school... wonder if it’s found thousands of years from now if it will be determined that Led Zep was a person of some importance.
Good thing that Egyptologists are informed enough, and have enough dating techniques, to be able to validate or disprove that sort of thing.
If it is indeed some kind of forgery, then there will be a rebuttal of the finding. Zahi Hawass probably has a team there already, as he is always looking for new opportunities to burnish the history of Egypt.