I think it's pointing to these listed here:
"often leaving the nervous system hyperexcitable (paraesthesiae, formication, muscle twitches, fasciculation, sensory hypersensitivity, tinnitus, jaw and dental pain, insomnia etc.) or generally unregulated/uncoordinated (cognitive) problems. Being functional changes, they are potentially capable of resolving which is why many people do notice gradual, if incomplete, improvement over the years."
It's very rare most people probably have just as much chance as never being on a benzo and developing anxiety disorders, panic disorders etc. Before benzo's, I had these "disorders" but wasn't nearly as intense as they are now. Many can testify as having these problems without ever taking a benzo or any other drugs. It's just highly exaggerated in wd and should go back to how you felt before benzos.