No, its just lower quality on the asus with the weird behaviour to create greesy spots when you touch it, which are hard to clean, but the sharpness difference is probably non visible.
I would personally say that my acer had the perfect coating, it was the best possible balance of clear image but still anti-glare.
Asus one is like 90-95% similar image, but lower quality overall.
Seems like AUO wanted to save some additional manufactoring costs and changed the process to the worse actually than it was for the very first batch of this panel. Seeing all the dust and **** under the coating, its like they outsourced the manufactoring of this particular panel to a garage type factory where noone cares about clean environment and wearing gloves.. (My 279 had finger prints spread all over the coating out of the factory, it def. didnt get opened after the factory)