That's not essential for historical fiction, actually. Usually, in fact, the more accurately historical fiction hews to all the historic details, the more boring it is, since that straitjackets the story so much. There are some happy exceptions, of course, but in general "historical fiction" is usually a mix of historic facts/settings/people, and a healthy dose of "poetic license".
I just wanna see something blow up and/or a sword fight.
It's interesting how the people who start these schadenfreude threads can ignore the total box office for the film. $464,981,000 in two weekends is not shabby.
Mel Gibson's total take was $611,899,420.