Obviously I can only talk about the facility I am involved in, and I am peripheral. But they are concerned with the client, they want to make sure it is OK for the client.
We hear the gatekeeper word and it frightens us. ALL medics are gatekeepers. They have to be, that doesn't mean they want to stop you, they want to make certain it is the way you want to go and is the best for you and you understand what you are doing.
Trying to correct a wrong decision is far worse a problem.
I have had this, I have taken out MtF who were certain, and suddenly realising that being a woman every second of every minute of every day of every year is in fact not what they want. They wish to be more fluid or whatever. It is their choice. There is nothing wrong in that.
But realising that before you set fire to every bridge is something we need to be comfortable with.
If you are certain you are gender dysphoric, are MtF and wish to live your life as a female then there should be no problems.
And a disclaimer I am NOT defining what living as female is.
Good gender therapists make no decision on what you are but on what you are happy as. The only person who can tell if you are transgender is YOU.