It all depends what kind of treatment your Audiologist practices and what you are paying for? If you are paying for hearing aids with or without maskers then that is what you got and shouldn't expect anymore. However, if your Audiologist practices tinnitus management this can include: counselling, CBT and TRT. Some Audiologists test hearing and fit a patient with hearing aid. While others do the same but also specialise in tinnitus managment and practice the treatments I've mentioned with their patient/client.
Hearing Therapists can also specialise in tinnitus management by practicing the trements that I've mentioned above with their patients/clients.
Michael
PS: Hearing aids with maskers should be introduced slowly. First use the hearing aids alone without masking. After a few weeks introduce the masking but keep the sound slightly below your tinnitus.