Why did Philo Judaeus criticize mob rule?

Philo Judaeus denounced mob rule as the worst form of government, likely because he personally witnessed the volatile actions of the Alexandrian mob.1

While Philo often spoke of democracy as an ideal, he distinguished his definition from the chaotic nature of mob rule. For Philo, true democracy was not defined by a specific governmental structure, but rather by the presence of "due order" under any system where all individuals are treated as equal before the law. He viewed the Mosaic constitution as the ideal model, as it incorporated the best elements of various forms of government, and he envisioned a future where the entire world would exist as a single state under such a democratic, orderly constitution.1