Exactly what is a "pet nutritionist"? A veterinary nutrition specialist has done a veterinary degree and then further specialisation (usually a residency programme over three to four years, before taking board exams and passing).
I've never heard of raw food causing hyperactivity. Personally I'm not a fan of recommending raw food as I think many owners don't do it well (some do!) and it can lead to problems with immunosuppressed people in the household.
Chewing on bones can also cause slab fractures of teeth = root canal or extraction, which is expensive and people get angry when that's the recommended treatment. It doesn't happen to most dogs that get bones, but certainly happens enough that I've seen a few of them.
Neither I nor any practice I've worked for has ever received kick backs for stocking or recommending a particular brand of pet food. I generally tell people that most dogs will do mostly well on most foods -- whether it's Eukanuba, Advance, Hill's, Royal Canin, Supercoat, Purina etc, as long as it's AAFCO certified complete and balanced. The only specific recommendations I make are prescription diets for medical conditions, and I don't care if it's Royal Canin or Hill's as long as the patient eats it.
Having said that, I used to give my dog a giant butcher's bone as an occasional treat -- but I wouldn't have been too upset if he'd fractured a tooth on it, it was a calculated risk.