UCI takes a classic approach to racing so that the bikes don’t become the story, and that’s ok. Recumbents are weird, and nobody is stopping you or anyone else from creating a recumbent league. There has already been a gravel UCI WC since 2022 as well. Disc brakes weren’t universally praised immediately either - it took years for the pieces the fall into place, like carbon rims, wider tires, through axles, etc. and now everyone uses them. I really fail to see the harm here over “slow” adoption. You can’t please everyone.