Commercial users who pay at least 25K/year to OpenSSL already, complain that we don't feed their business for free as we no longer support OpenSSL v1 in the vanilla curl release.
OpenSSL v1 is not available (updated) anymore without paying for it. Why would we serve obviously strictly commercial interests without getting paid?
So, up-to-date curl with support for OpenSSL v1 is only available for paying customers. You can become one right now!