Is Mojo being a superset of Python still part of its projected feature set?

I tried Mojo a bit early on and decided to come back to it when it was more complete, and in the interim I read some comments somewhere that the superset-of-Python part was being walked back from.

On https://mojolang.org/docs/roadmap/ it's stated (Phase 3) that "Mojo may or may not evolve into a full superset of Python, and it's okay if it doesn't."

I feel like that "full superset of Python" part was part of the appeal of Mojo.

Personally I'm kind of tired of 97% python-compatible this-and-that. Python itself has enough of a history of incompatibility and the cognitive overhead in switching might be easier with just moving to a totally different language. But maybe not — it depends on the details I guess.

Honestly reading through the documentation more and more I'm more and more confused about what the 1.0 release actually means.