I agree, and that’s essentially what I’ve been saying in a different, but less presumptive, way.
But saying things like “It seems that commonmark is slowly dying” is neither accurate nor helpful. It’s no more accurate than saying “It seems that Gruber’s Markdown is slowly dying.” We all know the opposite is true. The problem isn’t death/lack of adoption, it’s fragmentation.
Neither are your statistics helpful, because you know that saying about lies and statistics. Such comments aren’t going to spur things to move. It’s not how leaders talk, nor is it how you get leaders to listen.
How about you start a new forum topic making your above bikeshedding case, with a solid line of reasoning, sans hyperbole?