- "The Xbox One’s backward compatibility now stretches all the way back to the original Xbox, rivalling the PC’s ability to play old games."

PC's backwards compat stretches all the way back to when the first computer was conceived and it can play any game that existed on any classic console using emulators. So the xbox one isn't better at this by a long shot.

- "Downloadable games stopped being an afterthought in this generation of consoles. There are no disc-based games that can’t be downloaded, and many more downloadable games that don’t exist on disc. You can even store downloaded games on any external USB drive."

This isn't really a point, "Xbox can download games" so can PC, from many different storefronts. You can also install games to a usb drive and run them off of the usb drive.

- "The barriers to entry for indie games are much lower than they used to be. Developers can use retail Xbox One consoles as development kits, and can even self-publish their games."

But still not low enough that they can just upload and EXE and say "Try my game", making the selection still fairly poor. Itch.io has Xbox beat.

- "Free-to-play MMOs and early access games are no longer PC-exclusive concepts. The Xbox One X has more than 40 free-to-play games, including the excellent Warframe and the ever-popular World of Tanks. The phenomenon that is PlayerUnknown’s Battlegrounds just arrived on the console as well."

MMO's are also far less popular on consoles statistically and as such there really aren't many on there. You still can't play about 90% of MMO's on console.

- "Microsoft is even preparing to support mouse-and-keyboard for some games."

For some games, when I can choose to use it for any game I like. I can also choose to use a controller for any game I like. I can choose to wire up fruit to an arduino and use that as a controller too if I so wish.