An interpretation of Upanishadic teachings known as Advaita Vedanta is embraced by Sriharsa. Advaita Vedanta is a monistic interpretation of the mystical experience believed taught by the Upanishads. However, in certain impossibilities that Sriharsa says are entailed by central Logic theses, he purports to find further supports for his Brahman-centered world view. The Logic positions that Sriharsa attacks he sees as presupposing divisions in Brahman, divisions in the indivisible One. The reality of Brahman entails the impossibility of coherently conceiving a diverse world.
Indian realists have their own motives and some distinct axes to grind.
Though Nyaya is little known in the West, there are a thousand years of Nyaya literature before Sriharsa, with positions in metaphysics, epistemology, logic, and theory of meaning that become increasingly refined. After Sriharsa, New Logic emerges with further advances. But progress occurs incrementally, and not even with post-Sriharsa Logicians is there overthrowing of inherited positions wholesale. Innovations are usually a matter of a new distinction or a new analytic technique and not of a new position. Nyaya's realism is conservative.