Their government can not afford to lose face by admitting they were wrong, so the people, whom the government doesn't care a fig about, get to suffer the same fate again & again.
Unless the army rises up against the tyrannical government, supports the people, their own families, and changes the primitive political system that they have there, then things aren't going to change for a long time. It's presently turned into a larger version of North Korea, under the control of a leader who has just defied rules to put himself in for a third term, and presumably life.