He mentioned both were just point and shoot, so I guess it would depend on his settings for the X. In regards to overall camera quality, I personally found the Xs photos to be superior to the Pixel 2 in most cases, or on par at least. This idea to me that "the Xs isn't even on the level of the Pixel 2" seems overblown from one review, where even that reviewer says "it will largely depend on personal preferences".
Feels like I'm trying to carry Apple's water here, and I'm not...It's just pretty clear that the Xs cameras are a significant upgrade in both hardware and software, so I'm not sure if it's just X owners trying to overcompensate for not upgrading, or what...