[BotW][TotK] It was a missed opportunity to not have a true Shadow of the Colossus-style boss
With the Wild era's massive focus on climbing and other forms of vertical movement (Revali's Gale, gliding from high places, Ascend, springs, rockets, etc.), they would have been the perfect games to feature a true Shadow of the Colossus-style boss fight.
For those unfamiliar with Shadow of the Colossus, it is a game where you slay giant creatures by climbing up their bodies to reach weak points and stabbing them. The Colossi in the game are enormous, with all but three being over 50 feet tall and some getting way bigger.
Obviously, climbing a giant monster to kill it is awesome. And it's such a shame to me that neither BotW or TotK truly did something like this.
The games got close at times, with bosses such as the Taluses, Flux Constructs, or even Marble Goham, but they were all too small. The Demon Dragon is certainly big enough and even resembles the Thirteenth Colossus in a lot of ways, but most of the fight is just riding on the Light Dragon and skydiving down onto its weak points, with very little actual time spent on the Demon Dragon's body.