I'm moving your thread to the Client dev category, as this Feature Requests category is meant for Let's Encrypt feature requests, not Certbot (as Certbot is managed by the EFF, not Let's Encrypt/ISRG).
You could also file a PR on the Certbot github repo, although the Certbot dev team is rather small and if the changes aren't that significant, it may take years for the team to merge the PR, if ever.