What worries me the most is that you can see him playing with a xbox controller at one part in the video.
You know you can use controllers for PC too? Fifa e.g works really good with controllers.
But yeah this games looks absolutely fantastic, graphics are awesome, the combat looks interesting and overall this game seems like Mount and Blade with a story and lots of quests. I think it's awesome that there is an RPG in the making which absolutely waives magic and all that crap.