Why does AF Coating make the screen protector top-notch?

What is AF Coating? 

AF Coating has excellent water & oil repellency than previous general or high hardness hydrophobic with the purpose of harden the coated surface and having smooth touch. Hence, AF coating on the glass makes whatever stains such as fingerprint and makeup to be easily removed.

 Please watch the video below, and judge how advanced it is as compared to the EPU/PET film.