Synth music style invented around 30 years ago on technology that didn’t exist a generation ago: "This sounds old-fashioned, the developers need to evolve."
Orchestral music played on instruments that have existed for thousands of years, in a style that’s existed for hundreds: “Finally, a modern sounding ost!” 
Just a nitpick, but I’m like 100% certain you’d be able to hear the difference between Bach and Beethoven lol
Bach and Mozart is like comparing ragtime and bebop