What about this card makes it a PSA 9 and not a 10?

I recently saw this thread while looking up ‘holo scratch psa 10’ on google : www.elitefourum.com/t/deserving-of-a-psa-10/21652/1

I feel like even if this Charizard had a minor scratch, it’s not even visible while looking at it directly(again this is based off the pics, you are right that I need to see it in person to actually verify its holo.) Whereas that Chansey had multiple scratches/deep scratch on a white holo background and got a 10 because the rest of the card was so clean. Point is, even if this charizard has a tiny hidden scratch, the card looks so clean that I’m a little amazed that it didn’t get a 10

I’m just concerned because I have a few old cards I want to submit(jungle 1st clefable, base 1st blastoise, etc.) that I think are in gem mint condition without holo scratches/back wear, but if this card can’t even pull a 10 then I’m scared for mine :stuck_out_tongue: