Software and protocols are not static. Imagine people advocating to stay on TLS 1.1 because enough changes had been made to the SSL and TLS protocols. You wouldn't. For example, TLS 1.1 was released in 2006 and then replaced by TLS 1.2 in 2008. We are now at TLS 1.3, which was finalized in 2018 after 11 years of development and draft changes. New versions will always be developed and proposed.