If they can’t own their own part in whatever happened, it would seriously impair my trust in them and even my respect. I would not be able to work with such a therapist.

Being dismissive and not ensuring how it is affecting the client and worse, repeating the same pattern in the future? That does not speak of a very skilled or competent therapist.

I would move on. I don’t go to therapy to be further hurt by the therapist, I can get enough of that from ‘real’ life.