Both Mario Odyssey and SMB Wonder are only innovative in a vacuum where Mario is the only platformer franchise. Which for a lot of people I imagine is the extent of their knowledge about platformers.
The things people call "innovative" about Mario Odyssey are just half Kirby and half Banjo-Kazooie. Yeah Odyssey's biggest maps are way bigger than Banjo-Kazooie, but SMO runs on hardware that can emulate the N64, and it still has quite a few maps on the smaller side
SMB Wonder... I don't actually know what people call "innovative" about SMB Wonder, but I've seen people call it "innovative." It's the best 2D Mario made in the 21st century and it has a pretty cool gimmick. What's innovative about this?
Don't you think people just mean that it feels like a Mario game at the same time as feeling fresh? That's certainly how I felt. It's "innovative" in the sense that there are things that you didn't expect, and that's fun and exciting. I could be wrong, but I don't think anybody means "innovative" in that it's ground-breaking in the larger gaming world or even in the platforming genre.
I genuinely think the push for bigger maps has been a significant toxic influence on game design. Just look at Yooka-Laylee or even Banjo Tooie TBH. That's to say nothing of the modern open-world genre.
I feel the same way about photorealism. I want artistic interpretations much more than I want rote simulations.
This was especially evident after the re-release of sunshine and Galaxy. Sunshine had smaller, tighter levels. Galaxy had more ambitious levels that put fun over eye candy. I replayed them both after beating odyssey just to make sure it wasn't rose tinted glasses.