I don't believe it outright but because of its source it was certainly potentially compelling information
most people I've spoken to had it get a lot better within 18 months and the rest they just got used to. There may be some validity.
Sadly my tinnitus has been shitty the past 2 days. Probably due to inflammation in sinuses from allergies. Mine are terrible. It's frustrating, but I know it'll calm down again. This happens time to time.