The harness gap is not a temporary onboarding problem — it is a structural feature of how enterprise data works. OpenAI does not have end-user data, and enterprises will not share it . That constraint does not soften as the plugin count grows; it hardens, because every additional vertical an organization operates in adds domain-specific context a general-purpose platform cannot carry. The 6x growth since February tells you Codex has succeeded at the top of the funnel. It says nothing about whether those organizations are using it for anything load-bearing.
The practitioners already pushing back on that assumption are