Displaymate says its the best display theyve ever tested. I believe them and my own eyes over a rando on the internet.
Maybe they got one of the good panels. If you notice, many are not getting the good panels. But even so, displaymate is trying to compare it to a yellow-casted standard. What they call "perfect" is a man-made standard that leans yellow in tone. I personally think it looks terrible and artificial, so anything that they say is good I know will look like crap. The X is no exception.