> Who's been in charge for 16 years, and who just happens to be a military general and the eldest son of the previous prime minister.
That actually weakens the claim that it's a military dictatorship. If the army is controlled by civilians, its not a military dictatorship. If a person becomes leader of the military due to civilian connections, then it's not a military dictatorship.
A military dictatorship is when a person becomes civilian leader by virtue of their military leadership. If the son of the civilian prime minister first gets to take over the army, it doesn't change the fact that he's fundamentally a civilian and the civilians are controlling - inside and out - the military. It reinforces it. He led the army and the country because of his civilian credentials.
This sounds more like rule by and for a family or a small group of elites.
>Who's been in charge for 16 years, and who just happens to be a military general
According to this logic, the United States was a military dictatorship for a good portion of its history. Presidents Washington, Jackson, W. Harrison, Taylor, Pierce, A. Johnson, Grant, Hayes, Garfield, Arthur, B. Harrison, and Eisenhower were all generals. Your claim is absurd.