There is 0.19.8 ready now so test in again, please.
The '/opt/e19/lib/enlightenment/modules/cpufreq/linux-gnu-x86_64-ver-autocannoli-0.20/freqset' is owned by root for sure, but it has strange chmod: 555 (r-xr-xr-x). I will try to change to the default 755 and check it out next time before packaging. You can do it too and let me know does it work well.
The systray gadged stopped working in e18 so I added minimalistic LXDE panel with tray only to the e19 spins.
Setting chmod u+s,a+x (4755) solved the freqset problem.