This is a good set of questions. Lynnifer I guess I am "not legit" if your registration criterion is true. I didn't break my back but am still a t12 complete paraplegic. All neurological disorders are devastating and many progressive and terminal. They all merit serious attention.
I have read Dennis' letter, and it seems that Mr Hansen has been rather caught on the back foot, and responded to quite reasonable questions is a not very reasonable manner. He has done neither his organisation any favours nor given the rest of us much hope.
My conclusion is: have no faith or confidence in RHF; simple as that.