Somalia possesses some of the world's weakest state institutions, measured by the government's ability to exercise sovereignty for its citizens. It's widely known that, even in areas under Al Shabaab control, life is relatively more peaceful (though economically poorer) compared to regions in Haiti, Congo or I'd even argues the favelas or Brasil. This "peace", however, isn't attributable to robust state institutions but rather to Islamic and cultural values that don't necessarily rely on the state for providing services; the people and clans themselves take charge. However, even this situation is fragile.
Both Al Shabaab and Somaliland govern more Somali people and territory under the de jure state of Somalia than the federal government of Somalia. The Federal Member States merely pay lip service and function as tribal fiefdoms with power-sharing arrangements among clans that constitute their majority, at least for the time being.
But things are getting better, thats more than most of those states on the list can say.