I thought about that too! As well as using the merge or output blocks rather than volume pedals for testing. A few things popped out for efficiency, but the overall concept looked pretty interesting. I also wonder if he was trying to keep things as accessible as possible for anyone still learning all of the helix's capabilities
I was trying to use the helix to its potential, but then it's easy to get lost in mix... and now I run 4cm with the bluguitar amp1. So I haven't really been doing anything special with my helix floor; sticking with a less is more mentality in a live setting. It seems to work better, and my helix now has at very least 312 shows/gigs, plus studio, plus practice, etc on her.. So I've definitely put her through her paces and tried all the things.
-Seeing an idea like this that isn't riddled with an over abundance of effects gives me a chance to experiment with the helix again!
Though pulling this off while still using the preamp of the amp1 may not be possible. Could always just feed the return with a helix pre though. Anything that doesn't require moving a wire. The pedal board case has been properly OCD'd, and those wires would take real work to remove!