Yeah, sounds like they're idealizing the Revolutionary period. Revolutionary France was NOT about "tolerance", it was about erasing France's Catholic and aristocratic heritage to the greatest extent possible through violence and exterminations. Hasn't Paradox heard of the Vendée genocide? Is it too much to expect historical accuracy and fairness?
"The people of the great French Revolution wished to achieve equality; but they erred when they thought this equality could be attained through violence. They should have realized that such a cause and effort could never be the case, since violence, in and of itself, is the sharpest manifestation of inequality... Louis was executed, and the Marats and Robespierres immediately seized power and committed crimes greater than the crown had ever been accused of. They destroyed not only people but also the truth that these people were proclaiming at this time..." - Ivan Bunin, Cursed Days
In fact, revolutionaries have historically never advocated tolerance in practice. The assault on religion, the rural peasantry, and the aristocracy during the French Revolution was only intensified on a much larger scale in Bunin's world of Bolshevik Russia.