Moving away from the Everthing-Is-Possible-Unicorn-Utopia of Illustrator is an interesting limitation, as well as a simplifying one. As designers we like to come up with creative ways to display information that will still blow your mind, despite any technical limitations. The real world isn't perfect, and therefore it may not be as accurate as abstract shapes like graph bars. Even though these visualizations still strive for accuracy, you will notice that the context of these graphics will become much more important than precision.
Via Lauren Moss, Karen Bastien