You do realize that every game picked out for GOTY has their own "genre specific" awards right? Eg GOW was also nominated for "best action/adventure game".
There is no conspiracy to anything here.
Yes i know other games have sub genres, however it feels the only games that get nominated for GOTY are the mainstream games. No one wants to see a fighting a Sport or a Racing game take out the main event. That would cause an uproar at the show.
I feel they avoid that by giving less popular genres there own awards. I mean if Fifa 2020 won GOTY everyone who doesn't play Fifa would be on whinging especially when you have games like RDR2 on the market. So they give out best Sport game award instead.
Its why i dont take these Award shows seriously.