Some people desire or require more complexity than others. That's OK with me. I like simplicity whenever possible. We have worked with musicians who have a complicated setup, and when for example the guy with a guitar, keyboard, and a violin, all running through a Windows OS laptop on stage had a problem, I learned the hard way that I should limit my assistance to proving that our signal chain is 100% functional, and leave it to the guy who brought all this stuff to a bar band gig to figure out why he is not getting any signal out of his setup. The delay caused by equipment that was not our responsibility was interpreted by the venue owner as incompetence on our part. He commented to the band that it seemed as though I did not know what I was doing because it took so long to figure out the problem. The guy did not take responsibility for the problem being caused by a configuration issue in the Windows machine sound setup, which I resolved after he could not figure it out on his own, even though I was unfamiliar with what he was trying to accomplish with the computer at first.
When I see a gigantic pedal board and there is a problem with the signal out, I connect a microphone to our cable to the board, and say test, test, test, to prove our stuff works, and get off the stage.