@CannonSalt - I am so sorry that happened to you! I am outraged on your behalf, how dare ANYONE - who we go to for help would use a tool to de-power and power over you in such a way, it is tantamount to abuse, no not even tantamount - it IS abuse.
We are already 'vulnerable' we are already fragile - how dare some one come at you with a sentence like "feel comfortable feeling vulnerable'. Grrrr. Let's keep us compliant, sick, needy, wallowing about in powerlessness. It is unconscionable behaviour.
I do reckon still, that if a practitioner is not prepared to work with you on your own terms, being clear that the terms are set out as goals in the pursuit of health, living skills and clarity about one's own needs then that person is NOT working in your own best interests. We struggle enough, we are somehow pathologised and victimised and made to stay that way, we all have huge challenges, why would a whole sector (or parts thereof) of the helping proffesions want us to stay vulnerable?
If we trust someone, once that trust is built, THEN we can be vulnerable and share the deeper parts, not on cue, and certainly not when someone demands us to drop our safety nets so they can feel like they are meeting whatever 'brief' 7 years of study taught them was necessary.
If a practioner is not 100% on board in good outcomes with real life goals, what the hell are we doing there? Feeding them and their family? Lets find people who are willing, able and clear that this is OUR life, and they are here to assist us to live it. (Hope this is not too strident, but I really am very upset for you and hope you find someone who can assist with the ABC - not insist that you smear yourself into a helpless puddle. 
Of course, we will be further labelled as overly controlling, difficult and uncompliant if we do stand up and be clear about what we want and how we want to be in the drivers seat of our own lives when we can, to the best of our abilities. I wish you the very best, Cannonsalt (and any one who is or has experienced this 'power over') and hope we can by talking together and getting clear about what we need trend the conversations that happen in private doctors offices and psychs towards seeing that vulnerability in an of itself is not a great goal for already vulnerable people. It is a fine balance to walk, we need to hold our vulnerability and understand it and love it, but we do not have to turn it on like a tap when we step into some office somewhere because they demand it.