From what I understand the whole point is avoiding the need to stomp pedals or otherwise touch them during live performance.
Some pedals have a bunch of knobs which are a pain to adjust during live performance between the songs. So some pedals support changing the settings using MIDI interface. This device has builtin library of control codes fur such pedals. That way you can program presets for your MIDI controlled pedals in the storm summoner and during live performance quickly switch between presets with a click of single button as opposed to remember which of the half dozen pedals need to be stomped on/off for each song or worse adjusting the knobs.
Oh, ok thanks for the explanation, I can see the utility of it there. I thought it was more like "hey here's a stompbox but you can't stomp it and we switched those pesky knobs with a touch-senstive surface like cars did and everyone hates".
All without a DAW too I'm guessing? I use an FCB-1010 for a lot of things but yeah it's obviously pretty useless without a DAW.