I do not get the point.
- The Plone Security Team still supports old versions with hotfixes and bugfixes as stated in the Plone update policy. Though, this does not include Python itself.
- The Python Software Foundation stops supporting Python 2 April 2020. But if your enterprise depend on it, theres is professional support like by RHEL, see https://access.redhat.com/solutions/4455511 and others.