Miyazaki hasn't really innovated since Demon Souls. The other games are slight variations on the same gameplay and design. Sekiro is the biggest change, but the overall design is still very similar. The rest are just "more aggressive / faster" or "open world/metroidvania" in comparison. There are other differences, but the core experience is basically the same.

Fumito Ueda, while similarly iterating on similar ideas, was far more ambitious in his game design between Ico, Shadow of the Colossus, and The Last Guardian. Ico was very different to mainstream gaming at the time. SOTC pushed animation and scale to the limits of the hardware while doubling down on "design by subtraction". Guardian, while similar in concept to Ico, was a bold move in relying on a "true to life" creature and developing your relationship with that creature as gameplay design. Each were far less mainstream than Miyazaki's design which is why, as acclaimed as they are, you will find more division about them from so called "core" gamers.

He's the more important auteur in the medium. You don't get Dark Souls without Ico.