Do you need a bin for "red"? Or a bin for "2x4"? Or will there be enough for "2x4 red"? Should this new "red hat" become it's own bin, and if so is it "hats", "red figure decorations" or "misc"?
You don't really know until a bunch of the same things come in (or don't), and guaranteed you'll get a bunch wrong along the way.
Although we can technically "do anything" with the tools before us, there are still great strides to be made in harnessing the power to organize and control them. For this reason, I think we're still far from seeing the full potential of electronic music. We need better tools, and methods for manipulation of electronic instruments. We can barely even replicate and sequence the timbral control of something as seemingly simple as singing.
I don't understand point 3 and how that relates to electronic music specifically. There's a technically-infinite but practically-shallow set of pop music configurations and, yes, most have been done. What differentiates similar songs is composition, timbre, tempo, instrumentation choice, etc. In that regard electronic music has a wider palette to work with.