Imo, it only adds to the mystery of this game even more. Something that Zelda games have started to lose over the years.

It'll be great to dive into this game with a sense of wonder. I miss that in video games.

You could make the same complaint of Wind Waker or Skyward Sword as being nonsensical generalities until finding out their true relevance within the game.
I assure you, whatever the 'Breath of the Wilds' is, it'll be some sort of item or other driving force integral to the plot.