i no longer wear hearing aids, but if my audi said this to me (especially if my loss was such that i could not benefit from ite's), i'd look for another audi. i don't like audis who speculate and tell me that something might work. i want them to understand my hearing loss and tell me the truth about what kind of aids will work and which ones won't.
when i had moderately-severe hearing loss, my audi refused to fit me with ite, itc or cic aids because she knew i was a self-conscious 15 year old. instead, she opted for bte's and i'm so glad she did. thanks to her decision, i never had to make the transition from smaller aids to larger aids.
aside from that, bte's have more advantages to them than the other models i mentioned.