No, we did NOT do that.
A quick search on the devel list archives shows that F19 was released in July 2013:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o...
...and EOL'd on in January 2015:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o...
...which gives F19 a 19-month support window.
I wasn't a packager back then, so it may be easy for me to say this, but either way -
I agree with Kevin Koffer. The current Release Life Cycle states that release N is
supported for one month after N+2 is released. This is a promise we make to our users, and
breaking this promise would be a very nasty thing to do. If we arrive at the conclusion
that we don't have the manpower to extend F29's support window past the usual 13
months, then I argue that we should NOT prolong the F30 development cycle.