When you really think about, no one actually wants decentralization, Damascus wants central authority, while most regions and most liberal intelegencia want almost a loose federation of states, often along ethnic lines, recreating Yugoslavia and Ethiopia effectively.
Interesting that a leader in the Uqaydat tribe calls here for decentralisation. Maybe this will make people think who previously rejected decentralisation as a 'minority' attempt to weaken the state. Decentralisation and democracy will strengthen, not weaken, Syria.