Please create an rpm for the most recent stable version of proftpd, 1.3.8 It has some crucial features needed to manage/disable SSH and SSL ciphers that are considered as weak or vulnerable.
I'm quite reluctant to do major version updates in existing Fedora/EPEL releases as they might cause behavioural changes for existing users. However, I do have 1.3.8 builds available in my personal repo here: http://www.city-fan.org/ftp/contrib/misc/ Another possibility would be to build it in COPR. Would either of those work for you?