Well I'm one minute into the game and I've drawn a few conclusions.
1. The Developer is from US (reference to vow: protect the country from enemies, both foreign and domestic)
2. The Developer has played and enjoyed the Dark Souls series (reference to the cursed hollow being born out of fire)
3. The Developer is indeed a Legend of Zelda fan (the story, the three goddesses creating the world then leaving behind unknown power for a champion)
Edit1* - The Developer is clearly Lewd and a weebu like me, and a Sci-Fi fan.
If he is the one who wrote the story and didn't have it translated or edited then he is right handed due to the heavy use of words based on keys situated on the right side of the keyboard (easier/faster to access keys with your right hand fingers which are more mobile and faster to type than with your static left hand that rests on the bottom of the kb only using about two fingers at all times).
Edit2* - Judging by the angle of the shots/ scenes and the use of predominantly well established pleasing dual color frames suggests higher intelligence and talent for film production. Another skill I observed is the use of the rule of thirds : which is to divide the frame visually into thirds horizontally and vertically, so the image is divided into nine equal parts, which creates control points. Excellent use of that.
Edit3* - Possible influences on the game, Lord of the Rings, Altered Carbon, The outer Limits, World of Warcraft, Evil Dead, Warhammer.
I wonder why I just wrote this, but hey, it is what it is.