Speaking of Sicily, real Sicilians and some of their history: I recently made a strong recommendation to watch The Leopard (il gattopardo) mini series on Netflix. Having not been steeped in the history and culture of the island and region, I found this period drama series captivating and leaving me swooning. However little did I know that it also caused an uproar among those who had read the novel by Giuseppe Tomasi di Lampedusa (considered a national treasure) on which this adaptation was based on as did the 1963 movie of similar title (Il Gattopardo) staring Burt Lancaster nonetheless, as the Prince of Salina! The purists claim that the mini series took many liberties and deviations and basically mucked up the essence of the story in a cheap way, to which I disagree but I did not read the book either!
In conclusion, no matter which way you dice it and slice it, the finished product is going to offend some folks in certain layer of the society buy such is art and entertainment. I personally feel richer in knowledge and entertainment value, albeit over dramatized and sensationalized, as opposed to having been totally ignorant to it all ever existing. The purists sometimes have to consider this perspective if they do not personally have the wherewithal themselves to bring these books, stories and perspectives to the screen for the otherwise somewhat ignorant masses like me.