Is aesthetics "underrepresented" in leading philosophy departments?

Anna Christina Ribeiro (Texas Tech) argues that it is.   (Thanks to Miguel Dos Santos for the pointer.)  Lots of areas of philosophy are under-represented in the leading departments, of course, in the sense that many departments have no specialists.  Examples woudl include philosophy of law, mathematical logic, medieval philosophy, philosophy of religion, and 19th-century European philsophy.  The latter neglect strikes me as particularly appalling:  this is a century that includes Hegel, Schopenhauer, Marx, and Nietzsche, all major figures by almost anyone's accounting.  Of the top ten departments (for 2011), Rutgers, MIT, and North Carolina have no one specializing in any of these figures; only NYU, Stanford, and perhaps Pittsburgh have specialists in at least two of these major 19th-century figures.  Is that not as serious an omission?  What do readers think?  How do we evaluate the areas good philosophy departments must cover?  Signed comments will be strongly preferred:  full name and valid e-mail address.