If designers from this world got ahold of the music scene from that world plugins would get considerably worse, as UI's would be the focus of intense simplification, leaving complex features and their power users by the wayside.
I, for example, am a nobody (a hobbyist musician) who dislikes most custom VST UIs. Back in the day, FL Studio (nee Fruityloops) shipped with a bunch of plugins that looked like they had an autogenerated UI, with every parameter getting its own controls (a knob, numeric readout, and visual bar)... and I liked them. No cruft, and it was easy to systematically manipulate each control to determine its effect on the sound.
There's also the unintended side effect that now I know how to operate studio recording equipment because skeumorphic UI taught me how so many of these things work.