We may some day be faced with the need to drop RSA and use only ECC (or some other better/faster/safer cert type)
No one can predict what the future may bring (with any certainty) but it doesn’t hurt to be prepared.
I’d like to see native simultaneous support for RSA and ECDSA cert types in certbot/certbot-auto
Keeping the same simple solution but allowing for clearer choices of cert type and even for the choice to include more than one cert type.