That and therapy is treating the symptoms but not the underlying cause.
As a therapist, I have to object and say that’s not good therapy. Even when the underlying cause is something external to yourself that you do not have control over, a competent therapist should be working with you on how you can minimize contact, manage contact better, or completely escape said external stressor. A complete fix may not be possible, but there’s usually room for improvement.
Regardless, it’s incorrect to say therapy treats symptoms, but not underlying cases. Underlying causes are focused on all the time.