His first argument is a functional one: surely computers can give us a better way to manipulate audio than dragging around virtual patch cables. I totally agree with that.
However, then he tries to pivot the argument towards modernistic design sensibilities. Modern can be beautiful, but it can also be cold. And, like tactile interfaces, it's not immune from the eventual fatigue of seeing it everywhere.
In the end, the classic rule of form following function still applies. Make it work, then make it beautiful. As long as they don't impede function, I welcome the different looks and my occasional dose of nostalgia.