We know that History is taught by the winners. And the victory of England over Europe has been complete. It's really interesting to compare French and English articles related to French History in this regard. Generally there are some French resistance, but ultimately, the English version always wins.
From the point of view of an American who has been frequently taught (in secondary education and even graduate-level courses) that Napoleon was a force for, variously, the Enlightenment, the "good" kind of revolution, opposition to the "Old Regimes" of Europe, an espouser of
liberté, égalité, fraternité, a force for United Europe against the nation of shopkeepers, a true genius and hero, and so on, this looks like a gross overstatement along the lines of people whining about how horrible Stalin was and how "everybody" seems to think he was Less Bad than Hitler.
Through his memoirs - and, indirectly, Talleyrand's, which are equally full of ouright fabrications - Napoleon successfully fooled much of the world into thinking he was a Force for Progress. In the annals of military history, at the very least, this is an extremely well documented phenomenon - Napoleon-as-modernizing-force (and by extension, Good Thing) and Napoleon-as-brilliant-general (and by extension, Great Man of History) dominated the scholarly narrative well into the 1980s, and has been hard to eradicate even up to the modern day. Hell, there is a great deal of "Whig military history" involved; Napoleon ostensibly introduced new concepts e.g. total war, therefore was a proper forward thinker, therefore must have been pretty chill. There was no really serious clash of "English" and "French" narratives here; military authors including the noted Swiss Antoine Henri de Jomini, the noted Prussian Carl von Clausewitz, the noted Austrian Karl von Habsburg, and the noted American Dennis Hart Mahan (half of whom fought against Napoleon, one of whom deserted from his army, and one of whom served in battle against the British in 1812-4) all published extensively on how Napoleon put his stamp on military history. All described him in near-reverential terms.