What this tells me is that people immediately believe that "sharper = better" but, in the world of post processing, that's not always true. I've been saying from the very start that the missing post-fx on Xbox One X would have an impact on the situation and we know that's quite true.
Also, let's entertain the idea that new textures were added to XOX - some people would perceive that as a slight against the PC or a suggestion that XOX is somehow more powerful. That's just silly. Any additional assets would be a new thing added after the fact. It should be obvious to anyone that those assets could be added to the PC version without an issue. Missing features on PC is always down to the developer not a limitation of the platform, which everyone should understand.
In the end, though, we know that new assets were not added.