I think 1 or 2 hrs per week with a virtual stranger as a supposed remedy for developmental trauma, or any significant despair or deprivation, is an absurdity.

If some people find it helpful because several completely unpredictable variables lined up magically, that doesn't change the reality that the basic model is ridiculous.

You may see your new mommy/daddy for an hour, no more, no other contact, and abide by the weird boundaries or be shamed, etc etc.

Also might sound cynical, but why assume the therapist cares about your attachment needs or whether you are losing it after sessions? Therapy is a practice designed by and for therapists. They set it up to their liking, then recruit a customer base to make it go.

There is a hierarchy of needs with therapist needs at the top -- income, reputation, self-image, avoiding legal trouble, ego defense, emotional power, protecting the belief system/religion. Clients whose needs infringe on this are punted to another therapist, or unceremoniously deserted, or brought in line via coercive or punitive measures (usually sold as a client benefit).

Ethical concerns center around avoiding liability. Better to traumatize a client with cruel draconian fake boundaries, or by abandoning them when things get messy, than risk legal trouble.