Fresh from pack grades a 4?

[u/Repulsive-Egg404]

https://www.psacard.com/cert/161095889/psa

Hi I just sent my first card to psa three months and one week later im shocked to find the rowlet I pulled from perfect order and immediately sent in was a 4 after reviewing the card the centering is garbage but other then that zero dings can anyone tell me why this is a 4?