Graham Harman’s object-oriented philosophy is globally a regression compared to the post-structuralism that it purports to go beyond, but it does contain certain progressive elements. In particular its anti-scientism and its anti-literalism.
The striking failure of Peter Wolfendale’s much vaunted (in Speculative Realist circles) critique stems from the fact that it is in net regression compared with these progressive elements. What vitiates Wolfendale’s critique above all is its naive scientism, although he himself is unable to recognise this.
This regressive aspect of scientistic objections is why a non-scientistic critique of OOO, such as Zizek’s, has a greater chance of isolating the major structural elements that need to be replaced. This is better than concentrating on critiquing OOO’s lesser defects, as does Wolfendale, due to his scientistic blindspot.
Zizek manages to say in the limited space of 15 pages more than Wolfendale says in a 400 page book, because he does not approach OOO from a scientistic perspective.