Somebody may have a different view and I am ready to listen to all sides.
Essentially the history of Adawa was repeated, adding one more chapter of the long lofty history of Ethiopian heroism: determination, mobilisation, cause orientation and acting as a unified front, among others.
TPLF tried to extract Tigrean elements of the same commando as well as the interviewee of the following video indicates, but they were defeated, if for nothing else the junta lacked a convincing cause for the war. Cause is a big factor, like General Berhanu Jula put it and said contributing upto 80% of the factors in winning a war.
Ethiopian forces:
Further information: Ethiopian aristocratic and court titles
Shewa forces; Negus Negasti Menelik II: 25,000 rifles / 3,000 horses / 32 guns[6]
Semien forces; Itaghiè Taytu: 3,000 rifles / 600 horses / 4 guns[6]
Gojjam forces; Negus Tekle Haymanot: 5,000 rifles[6]
Harar forces; Ras Makonnen: 15,000 rifles[6]
Tigray and Hamasen forces; Ras Mengesha Yohannes and Ras Alula (Abba Nega): 12,000 rifles / 6 guns[6]
Wollo forces; Ras Mikael: 6,000 rifles / 5,000 horses[6]
Forces of the Ras Mengesha Atikim: 6,000 rifles[6]
Forces of Ras Oliè and others: 8,000 rifles[6]
In addition there were ~20,000 spearmen and swordsmen as well as an unknown number of armed peasants.[6]