@Awoo @LukeAlmighty since they put the zonai in botw to begin with, they likely had planned to expand on them a little bit with an expansion. however, once it ballooned into a full game, they perhaps had to focus on them entirely instead.
like i said, bad call making it a full game. it would have worked way more if they trimmed off everything but what was absolutely necessary and told the story in the modern era. it is painfully obvious that they had an idea that would have worked better as an ADDITION to breath of the wild rather than its own entire game that had to rely on its own merits.