This is a classic tale of what happens when incompetence, treachery and greed are all fused together.
The TPLF had the greatest opportunity when it came to power courtesy of Somalis, to ally with them, but instead paranoia took over and they did the opposite designating them as their number 1 enemy.
From there on, it was only matter of time before they fell, its simply not possible to fight on so many fronts, their paranoia got them to beef their former buddies in Eritrea, now it's South Sudan, Egypt one still exists, and they even managed to beef the American's and UAE as well.
The only reason they made great strides in Ogaden was the discovery of oil, otherwise that region would still be in turmoil and neither would they have invested a single dime, it was just sheer luck and pressure from the Chinese, they couldn't just come in and exterminate all.
Some Tigray cab driver the other day lamented this, 'we should have befriended the Somalis and used the Ogaden model' they are the most loyal people, I laughed at him, hindsight is 20/20.
The famous Somali saying "God doesn't intend good for the cursed" comes to mind. You can have millions, but not a single atom of common sense, to even bring 1/1000 of it to good use.
Good riddance, their collapse will be delight for the entire region, I rather an Amhara whose animosity and ambitions are in the open, then a snake like TPLF