The convention is very clear, in that if a genocide is suspected, a member state that is part of the convention has to do everything it can to stop it. The question, of course, is how and why? That's why it's an enormous debate. Also, it is why states are reluctant to declare genocide. It is simply because by declaring that, they are going to be under an obligation they cannot fulfill, so we have a conundrum here.
This is why practical measures are needed that are not fixated on the word “genocide” alone but are concerned about crimes against humanity, about humanity generally, and those other practical measures that will reduce some of the ways in which the Ethiopian and Eritrean parties are conducting this warfare on Tigray.