It’s for chinese internal market primarily. Afaik play store is already blocked in china, so they won’t notice the lack of apps, as app selection is already limited for them. I read somewhere, that chinese have some “everything app” where they can do every online payment and services, etc, and they just had to port that few apps to this new os to become a viable alternative there.

I guess on the few international markets where you can still buy huawei phones, they may have an android based version.