This passage is from a book called Art and Science by Sîan Ede, a post modernist commentator on the relationship between art and science. Please stop reading this stuff. Postmodernist philosophy, linguistic analysis, and literary criticism is all written in a language of extreme abstraction. Most of it has no meaning that you can discern by examining its vocabulary and syntax. It's possible that the author has some private understanding of these portions, but that is unavailable to you. The parts that you can decipher are mostly wrong, mostly because these authors have no acquaintance with the mathematics and science they claim to have insights about.
In this passage, Ede is discussing a hoax perpetrated in 1996 by Alan Sokal, a professor of mathematics at University College London and professor of physics at New York University. Sokal submitted a paper to a journal called SocialText, a journal of "cultural studies" published by the University of North Carolina Press. In his paper, Sokal deliberately made nonsensical statements about math and science in a parody of the style of meaningless abstraction adopted by the contributors and editors of the journal. SocialText published the paper. After Sokal revealed what he had done in the journal Lingua Franca, he reported one of the editors of SocialText refused to believe the paper was hoax.
In the book you're reading, Ede claims that the editors of SocialText were fooled by the hoax because Sokal's fake paper "supported the prevailing political and cultural orthodoxy of [their] journal." This isn't true. They were duped because they were too ignorant about science to spot the hoax and too lazy to check with reliable sources. They were fooled because they got used to language that seemed to say something profound without saying anything sensible at all.
You may read Sokal's submission to SocialText and the subsequent debate about the paper here.
English has an enormous vocabulary and a flexible syntax that permit of a wide range of expression. But not all of that expression need be meaningful.