In principle, that's fine, but "disruptive" businesses aren't building a positive long-term model. Rather, they are leveraging investors' money to recklessly demolish established systems and replace them with something worse.
If the established system can adapt to the disruption, then as consumers we have more choices.
If the established system dies and the disruptor replaced it (DVD rental vs Netflix), then the disruptor, despite their weaknesses, do answer the consumer needs better.
If both the established and disruptive system dies, then maybe they're not that important in the first place.