The Azerbaijani's have a grudge to avenge the loses and the damage done to them.
The famous Azerbaijani air force and drone operators, who were trained by Turkey and Israel, is already in Ethiopia and more experienced pilots are coming to Ethiopia.
See how the Azerbaijani pilots operated in the war against Armenia. They can easily crush the Eritrean army in the Asab front and capture the port, Barentu and probably Asmara with in few weeks.
Eritrea's army which is heavily dependent on artillery warfare has no chance in front of drone warfare.