Disruptive Innovation involves simplification. Clay Christensen, who coined the term, didn't quite put it that way, but explained how his theory represents the transformation of a complex and expensive product used by experts into something more accessible for a larger population.
In this way, it is also a strategic move. By targeting the bottom of a market with simplicity, the innovation disrupts the legacies of overly-complicated and costly competitors. You may enjoy hearing his examples in the following video.
