No, you're overcomplicating the obvious implications of all of these studies.You are cherry picking studies, John. It would take a lot more analysis to get a better understanding of the underlying mechanisms. People with SSHL usually have other factors compounding the issue such as circulation problems, menieres, trauma, infections, etc.
There's a lot more to it then you are letting on.
And that is that there are many ways to induce inner ear sensory neurons to regenerate, which results in an improvement of hearing loss, which will obviously alleviate tinnitus.