Is siad barre hadden dissolved the government and all institutions of power in the country and replaced them with his revolutionary council, if Siad barre hadn't consolidated all power into his hands, If he hadn't made a country with so much potential a citystate. he weakened and eventually led to the destruction of Somalia as a nation because he made it very easy for sanyone wanting to do so; cut the head off and the snake dies. When he was ousted there were no viable non-militant opposition powers, no institutions no one that could run the country, no framework for reconstruction no political system - THAT LED TO THE DESTRUCTION OF SOMALIA.
The SNM and other groups were a symptom rather than a cause.