Yes it's true, only think the government can do is just make peaceful deal with corrupt officials.Not really bro. Somalia is still a mess but 10 years ago Xamar was mostly controlled by terrorists as most of the south. Now all major cities have been liberated. While it's true that the governement only effectively rules Xamar it's also true that major cities like Kismayo, Garowe, Beledweyne etc are technically under federal states control which is almost the same as being under the FGS control. If the states and the central government stop fighting between each other we will have a scenario where most of somalia is under governement control
But on the long term I think it's going to get better as soon as they cancel the UN embargo.