Because sarahs attitude toward this current t is almost exactly the same as her attitude towards her previous t, and similar to your attitude toward ts - that the fault is the ts. Then the client (you, sarah, whoever) tell the t that you think they are doing their job incorrectly. Then the t tells the client, maybe we are not a good match. Then the client does not get the help they had once hoped to get from the t.

I understand the impulse to tell the t they are not doing a good job. It often comes from having ineffective parents who perhaps put your life at risk. The t needs to know that YOU ARE AWARE that you have this deservedly negative and fearful attitude and want to change it in yourself, even if you dont always act like it. But if you go in there thinking that the t is the one who has to change in order for you to feel better - that would not be ethical. That would be like literally giving you a fish and letting you eat for a day, instead of teaching you how to fish in the world.

f