Like freedom of religion?
To say that is to completely misunderstand reality. The American experiment with freedom of religion is only 200 years old and the meaning of that freedom is still being tested and challenged.
Saudi Arabia as a nation is only 70 or so and is only now being modernized. It has risen from the desert in a miraculous fashion in thirty years. To have cast off all the old ways and change so drastically in so short a time is not reasonable. History and change takes time.