Withdrawing from Tigray, Abbiy benefit two ways
The amharas and Tigrayans would get occupied and weakened for a long to come. Keep the amharas busy. The problem is the Tigrayans are cornered, meaning they have to fight for their lives. For Amhara, it is a piece of land they claim. For Abbiy, ten years or more in Finfine. It may not turn out that way, but changing the constitution, getting rid off Ethnic federalism may not be on his book. I thought it was. What about OLF ? Tribal politics is not going away. Abbiy is walking on the dangerous cake walk. Allowing Tigray to seccede means the beginning of the inevitable and unthinkable.