This is a zombie Ganondorf for suuuure. It might be someone trying to resurrect him (again). I wouldn't put it above Nintendo to do the bare minimum for a story (I am certainly hoping that they would go story-heavy, though).
I loved the story in breath of the wild, that is to say you get poked at the start of the game and told "Ganons over there mate, what you waiting for" and you run towards Hyrule castle until you get blasted by walking death spider robots... then you start to tell the story of how you hid away like a little coward under some rocks and prayed the rolling death machines would leave you be until you can find something better than a tree branch to wave at Ganon.... Perfect story telling imo!
Fancy hearing me on an amateur podcast with friends gushing over one of my favourite games? https://youtu.be/1I7JfMMxhf8