I studied advanced economics in four different countries and not once did any class attempt to discuss his writing not even in passing, which does seem like an oversight to me. If he's so obviously wrong then it should be easy to point out why, correct?
Discussion
I actually wrote a paper criticizing Karl Marx from a technological perspective, and I received my best grade in my master's degree for that paper. However, aside from that, I think all of his analyses about capital are excellent and still relevant today.