Well the postmodernists certainly cite Kuhn in support of their anti-reality drivel, but the real problem with Kuhn is that he was just wrong.
There's a mature science, where knowledge is limited but accurate, where new findings cause a recontextualization but no paradigm shift, and the previous knowledge is preserved within its new context,, and immature science, where people are doing things wrong, reaching conclusions with inadequate evidence, and stuff gets thrown out during a "paradigm shift", i.e. when they start doing mature science.
Examples of mature science are physics with the incorporation of relativity and quantum physics, which preserved Newtonian physics, or biology, where the human genome project revealed that there were 1/3 as many genes in humans as was previously thought, at which the field barely batted an eye and shifted in a heartbeat to looking more at gene regulation. Clearly, these are huge changes in the fields, but they don't rise to the level of a Kuhnian "paradigm shift" since the old knowledge and vocab and understandings were preserved.
What's an immature science? Probably the social sciences, or those areas of other fields where there's reproducibility problems, p-hacking, and other dysfunctions. To the extent that these fields have overarching paradigms, they may suffer a "paradigm shift". But in mature science, there just aren't any paradigm shifts, in the Kuhnian sense, happening, because a mature science has sufficient evidence in hand before generating a "paradigm".
Kuhn was wrong. But "Paradigm Shift" is a flashy phrase and it captured the zeitgeist of the time it was written. At this point, anything that helps tame this pop-philosophy-of-science phenomenon is not unwelcome, especially because, yes, Kuhn's writings are supporting anti-realist postmodernist trash, without being especially misread.
First, note that you are conflating Kuhn's talk of theories with talk of disciplines. The introduction of quantum mechanics enhanced the explanatory power of physics; it also sent alternative theories, which proposed too many factors or more poorly explained the world, to the dustbin.
On that note, can physics be called a "mature science," then? To reconcile relativistic and quantum physics—both of which provide limited but very accurate and useful results—would be a paradigm shift; it would require the revision of large parts of one or both theories to be able to combine them without contradiction.
There are core ideas in each of these theories which are not simply revisable: they are connected with too many others. Peripheral ideas are malleable; the precise number of genes isn't very important if we can still explain protein variety (via alternative splicing and other modifications).
There's a mature science, where knowledge is limited but accurate, where new findings cause a recontextualization but no paradigm shift, and the previous knowledge is preserved within its new context,, and immature science, where people are doing things wrong, reaching conclusions with inadequate evidence, and stuff gets thrown out during a "paradigm shift", i.e. when they start doing mature science.
Examples of mature science are physics with the incorporation of relativity and quantum physics, which preserved Newtonian physics, or biology, where the human genome project revealed that there were 1/3 as many genes in humans as was previously thought, at which the field barely batted an eye and shifted in a heartbeat to looking more at gene regulation. Clearly, these are huge changes in the fields, but they don't rise to the level of a Kuhnian "paradigm shift" since the old knowledge and vocab and understandings were preserved.
What's an immature science? Probably the social sciences, or those areas of other fields where there's reproducibility problems, p-hacking, and other dysfunctions. To the extent that these fields have overarching paradigms, they may suffer a "paradigm shift". But in mature science, there just aren't any paradigm shifts, in the Kuhnian sense, happening, because a mature science has sufficient evidence in hand before generating a "paradigm".
Kuhn was wrong. But "Paradigm Shift" is a flashy phrase and it captured the zeitgeist of the time it was written. At this point, anything that helps tame this pop-philosophy-of-science phenomenon is not unwelcome, especially because, yes, Kuhn's writings are supporting anti-realist postmodernist trash, without being especially misread.