Sure. It'd help if consumers knew it upfront that therapists are very limited in how much they could help either due to their emotional limitations or their limited knowledge.

For starters it'd be important to let people know that psychotherapy is not based on solid science and that a large part of it is experiential, so do it at your own risk.

But that kind of a disclaimer should be done on a mass scale in order to have an effect, not through individual informed consents, because it is a MASSIVE paradigm shift.

By disclosing the reality of what psychotherapy is and what it is not, you are essentially telling the public that the professionals they are or about to see are not all-knowing experts, who are well-equipped to deal with any emotional and behavioral problem.

That isn't going to go well both with the public and the professional community. The public at large wants to have "experts" who tell them what to do to "fix" their problems and the professionals want to play the role of those "experts" because doing so feeds their egos. Works for both parties, so none of them is particularly interested in changing the status quo.