That's not really the point I was making, but yes there is research into nerve damage or so-called 'hidden hearing loss' as a causal factor. There's also Ménière's, viral, COVID-19/jabs, barotrauma, microsuction, stress, depression etc etc etc.
These 'causes' are often presented to us in terms of the heterogeneity of tinnitus but I believe this is misleading and that they are actually satellites to a central phenomena - the "something else going on upstream" hinted at in Rauschecker's paper from way back.
Even though recent studies are still being carried out into hidden hearing loss, I'm not aware that researchers have stated categorically that every person who suffers with chronic tinnitus exhibits hidden hearing loss. It seems to me this type of nerve damage can just as easily be another trigger to a malfunctioning upstream mechanism that only exists in tinnitus sufferers.
FWIW, I believe these upstream mechanisms are fundamentally neural in nature. I also wonder whether or not similar systems are at play in other neural issues, which is why I recently posited a question (which unfortunately hasn't received any replies) regarding schizophrenia. I can't see there being a great deal of difference between hearing phantom voices and hearing phantom screeching other than each of them originating from different processing centres in the brain. Perhaps the two conditions share a common bio-marked denominator that could be investigated.
Anyhow, this is what I mean by changing the paradigm. I hope for the appearance of a new generation of tinnitus researchers; a bit of new creative blood to potentially open up some fresh paths of research.