I guess it just wasn't my type of game. I didn't like the Divine Beast dungeons, as I personally found them to be far too difficult, what with all the moving and shifting of the environment you had to do. (Admittedly, that's on me. I'm just not very good at complex 3D puzzles. I couldn't even finish Catherine on easy mode.) And though I can certainly appreciate games with big open worlds (Far Cry 3 is one of my favorite PS3 games), I also believe there's such a thing as too big. (Sailing around the entire Caribbean in Assassin's Creed IV: Black Flag sounded utterly exhausting to me when I first heard about it.) Also, exploring the open world was a drag. Sprinting, climbing, and swimming all take stamina, and you only start out with a little bit. Enemies were insanely overpowered to the point that they could kill you with one hit. And what was even the point of taming a horse if most of the terrain is extremely unfriendly to horseback riding? Never mind that you have to worry about the elements killing you if Link drifts outside his comfort zone. Sure, there are solutions to these hurdles (more health, more stamina, special clothing, etc.), but you've got to spend several hours gimping around Hyrule like an incompetent infant before most of those solutions become available. And finally, I didn't care about the story because Nintendo has rebooted Link and Zelda so many times now that they're basically just hollow cyphers.
All in all, the only Zelda game I'd rank lower than Breath of the Wild would be Zelda II: The Adventure of Link, and that's only because that game is literally unplayable.