Squid licensed under GPL, but linked openssl.
OpenSSL license is incompatible GPL.
Its non-free, because license problem.
1. Remove openssl support and rebuild. (Its simple)
2. replace GPL compatible library (Example: nss, gnutls, etc...) but Im not tested.
Note: GNUTLS is licensed under LGPL, nss is licensed under MPL version 2.0.
3. Contact Upstream author.
4. Remove Fedora repos.
Blocking FE-Legal, this is license problem.
It is not seen as a license problem for Fedora where OpenSSL is considered as a system library. See the same Fedora Licensing FAQ link you posted.
There is however a policy decision to use a common TLS framework (NSS) and there is a existing bug report for that as you already found.
Feel free to reopen to continue discussion if you disagree with my understanding of Fedora Licensing requirements.