Video shows only one redstone wire...but the panel shown uses a lot more then just one.
Because of the way the connection system works,
you have to use a separate redstone connector from this mod for every single item on the panel.
So is this difference a false representation hiding how many connectors the panel in the video uses?
Or is it that it's a dev/non-1.12.2 build not publicly available for 1.12.2 on curse?

Edit:
The panel components have to have a set connector they run through.
And if you had all of those components on the same connector,
it wouldn't have worked the way you showed it.

Edit2:
Does the example video use features not available in 1.12.2 builds on curseforge? or is it working with a binary flag system (1, 2, 4, 8, 16)?

Edit3:
In this video I found out it does bundled channels.

And there's no mention of this fact in the manual.

How do I even take advantage of the bundled inputs/outputs? (will look in manual and ninja-snip this if/when I see it there)

It isn't explicitely mentioned in the manual entry on IE redstone wires, but all of them have 16 analog channels/frequencies. So you need one wire for every 16 signals (the maximum I have needed so far was 2 wires, now that breaker switches work for RS wires I'd need just one).