The innovative potential of Mojo would be constrained to relatively niche and senior dev circles until they get a Windows release, which probably won't happen anytime soon. Python keeps the throne for now.
In the category of AI/HPC software Mojo aims to displace (which is my industry), I don't know many people who care that much about running Windows. The software I work on may only run as a Docker image or directly in a Linux/WSL. Mojo is hardly the only tool in the space (currently) lacking Windows support.
The niche is so big that Microsoft invented WSL to run Linux programs on Windows.
And Julia as well.
I don't understand this premise. And the more I think about it, the less sense it makes. On the grand scale of things, Windows is the niche platform here. For consumer desktop use cases, it is king, but nobody deploys on it for the use cases that the first version of Mojo is optimised for.