The relevant part is, curiously, everything else he said. I can see why you didn't even attempt to offer a retort; that would've required arguments you are unable to construct, instead of derision that is so easily hurled. What is hilarious, is the idea that everybody has to like Sony's 1st party, over pretty much everything else, as if PS4 fans needed to be reminded what the best selling game on the platform is.
No, the relevant part of the post is still what I bolded: so many games shared between the PS4 and XBO that they easily make up the majority of the objectively good offerings for each - much more so for the XBO though. If the PS4 library sucks, then so does the XBO one.
As to his example with SoTC - it is not a good one (SoTC PS2 and PS4 are extremely different - SoTC Ps4 is remade!) - there is an easy retort. Not to mention his arguments to buy the XBO to play last-gen games.