From the blog post:
TL;DR: We have joined the Z-Wave Alliance, thanks to revenue from Home Assistant Cloud subscribers, and will start the certification process for Z-Wave JS.
As a z-wave user myself, I am pleased by this. I was apprehensive about Z-Wave JS at first, but its been super reliable and stable for me.
I’m not totally sure what this means in practice other than maybe the continued health of the project. Which sounds good. I’ve been pretty happy with the reliability of zwave js too.