The knowledge gap is very real. Because unsavvy users are just going to paste the API key into codex and say "make it work". For the truly lazy/uninformed, codex has computer use, and are going to tell it go into Vercel/Netlify/Stripe/Cloudflare for them, and get the API key, and save it to .env for them. So users knowing they need such a feature in the first place should be celebrated when the alternative is even dumber.