Earlier in the same article, they quote "Huawei will need to solve the biggest hole in the adoption of Harmony OS: the app ecosystem".

I think that's part of what they're talking about when they say these others never crossed the chasm.

And, yes, KaiOS has crossed the chasm, but I don't see:

- that being open source helped with carrier deals and hence adoption, or

- that they've solved the app ecosystem issue