>I can't help but think we should bet on sth like Mojo instead for the long run.

JAX or Julia hopefully.

Mojo is a terrible language and its main feature (GPU acceleration through Mojo max) is closed source and requires a commercial license to be purchased.

Why is it a terrible language? Genuinely curious question.

A language where a main feature, Gpu acceleration, is being behind a commercial license is a pretty big issue.

Not on language design, but in the ecosystem and other areas.