Something I miss in this norms is the "Engage" in "Engage in civil discourse", and "Together" in "We are in this together".
I see a lot of norms dealing with individual behavior, specially acting as free agent. But there's not many that encourage, or convene that we are a team, thus we are not free agents but members of an organization (decentralized or not), so we do not act alone, and each of us acts as representative of the group, prioritizing group level goals and duties over individual ones.
In that similar sense, there's little in the norms that would make me prioritize collaborating with others over working alone, as long as I share any learnings (that could be considered done by working in public).
As a data point, there's only one mention of collaboration, and it's as part of "collaboration rather than competition", that could easily be interpreted to not prioritize working with others as long as you are not competing.
I think we should discuss and agree if we should work as a team or as free agents (in the spirit of https://rework.withgoogle.com/guides/understanding-team-effectiveness/steps/define-team/, workgroup vs team), and reflect that clearly in the norms.
Once we know how we organize and communicate between ourselves we can start organizing our systems and processes to match (https://en.wikipedia.org/wiki/Conway%27s_law), trying to maintain a system that does not match the way we organize ourselves only brings friction.