The only thing Eventide Device Manager does with Factor pedals is manage their software. Since there can be issue that require the software to be re-installed, it allows you to “update” to all available software versions, including one that may be installed already. Same for Eventide Direct Updater.
Largely, if H9 Control works for you and you don’t have any issues with the pedal, I wouldn’t concern yourself with EDM or EDU.
