Yes! By default, Org Mode assumes that you intend to create an Article-type LaTeX document. This is because an Article-type document should be able to handle most composition jobs. However, this approach can still be an issue for users that want to use the other templates that LaTeX provides. Knowing that, changing the LaTeX document class is simple. All you need to do is to add the "#+LATEX_CLASS:" option followed by the document type that you want to use. For example, you can use LaTeX's "report" document class instead.