Do we know that the 1980 record wasn't faked? Where are his GPS trace files...?
Frank G's record has been questioned because he never ran an ultra other than claiming to run 66/day cross-country. Granted, there weren't many ultras in 1980. There was a book written about it called "46 days." Stan C's record before that was also questioned.
Now we live in the age of data in which records should be verified.
This might be a case not unlike the womens 100m WR that was set and near impossible to retract even though there are serious questions about it, and yet it will be near impossible to break.
I think that's part of what made this viral in the running community. RY stated that he thought he could break the transcon record by 6 days. If he did so, he would have put it at an untouchable point for any legit attempt.