https://english.ahram.org.eg/News/557329.aspxThe ministry described this pattern as “hydrologically unsound,” noting that Ethiopia reduces outflows to maximise storage and raise water levels, then abruptly releases large volumes far exceeding operational needs, rather than discharging gradually as international best practice requires.
Well, if I am asked, as a private citizen, I care less if it is "hydrologically sound or unsound", it can be even used as a leverage in the future (if it works), every time the man of Cairo take a flight to his old slave on the Ethiopian current northern border.