But its not just claude.md. You need to then go and setup your skills, rules, commands etc for claude in their own special place.

Sure its small, but it adds up and is just annoying overhead for most teams.

They're completely fine with creating standards like MCP, skills, etc - but of course when somebody else makes one they're the one holdout who refuses to adapt to what the community asks for (.agents folder, AGENTS.md, etc).