Agreed with this. Also, to give the author of the Psyche article credit, he defined what he meant by obscurantist philosophy earlier in the article. In my fairly limited reading of them, Foucault, Derrida, et al., don't always do this, even when the terms they use are much less self-explanatory than this one.

I admit Deleuze's writing is hard work but he has some really interesting metaphysical ideas linked to complexity and systems theory, try reading Manuel DeLanda for a more accessible introduction