I'm not sure what you're saying, but cards that are graded AUTH are usually that way because they are deemed to be altered.
For a T206 Wagner the AUTH is huge because it shows it is not a fake.
I'm saying (for example) that the population of 8s is usually inflated because a 9 is often worth 5-10 times more, so trying to re-sub has a big upside.
For example I just picked up this '73 Clemente because I feel it is a super nice 8 that could reasonably be a 9. If I ever feel like cracking and re-submitting (or reviewing) it could go from an $80 card to $400+. For really valuable cards that are high end the card may be re-subbed many times looking for that valuable bump, thereby throwing the pop report into disarray.