The day of the philosopher as isolated thinker--the talented amateur with an idiosyncratic message--is effectively gone. ” —Nicholas Rescher, "American Philosophy Today," 'Review of Metaphysics' 46 (4)

Campbell, James: " No longer could the [philosophy] professor function as a defender of the faith or an expounder of Truth. The new philosopher had to be a leader of inquires and a publicizer of results. This shift was made obvious when certified (often German-certified) philosophy Ph.D.'s replaced theology graduates and ministers in the philosophy classroom. The period between the time when almost no one had a Ph.D. to when almost everyone did was very brief. [...] The doctorate, moreover, was more than a license to teach: it was a certificate that the prospective philosophy instructor was well, if narrowly, trained and ready to undertake independent work in the now specializing and restricted field of academic philosophy. These new philosophers functioned in independent departments of philosophy [...] They were making real gains in their research, creating a body of philosophic work that remains central to our study even now. These new philosophers also set their own standards for success, publishing in the recognized organs of philosophy that were being founded at the time"

This seems to me to be the reason that philosophers with a message like Hegel are ignored and marginalized.
This is sad because it means that people with a message are never trained in philosophy an could not tell you the difference between an a priori and an a posteriori if it hit them in the face.
People with a message nowadays are in general cult leaders and charismatic idiots  the assorted Eastern cults

And it also means that professional philosophers in general have no idea of what they are talking about when they venture outside of trivial philosophical word puzzles.
Certain professions do not take well to become professions.
Some people  think that professionals know what they are talking about, and talented amateurs are just plain ignorant. It does not matter what profession it is.  What ever the professionals say is true. Period. 
I, on the other hand, am a pure bred Californian. To me anything any professional says is suspect until proven true. I would rather the talented amateur over the professional; the very word "professional" leaves a bad taste in my mouth. Using Torah as a profession is by definition against the Torah. 

But there certain professions where in fact the professionals are better than the talented amateurs. Math and Physics and the other natural sciences come to mind. 

 But in the field of Philosophy the professionals seems to be fairly good at word puzzles and that is all. When they start to talk about Physics I run the other way. The repeat clichés they think are true because they heard them from someplace.