It looks so bad... there are great tools out there that are built specifically for sharing your public roadmap with your users. Using GitHub for this is very rough on the eyes, and just bad for usability.
Honestly, do not care, at all. The fact that they're doing it I think is awesome. So many large cloud providers (cough, GCP, cough) are so loath to give any visibility into their upcoming roadmaps, and it's extremely frustrating. I totally understand priorities may change, but having a general roadmap lets me plan much more easily.