That doesn't mean that every time a T does this, it's therapeutic. Sometimes it is hard to figure out whether what you're hearing is upsetting because it's your issue or if it's how the message is delivered by the T. Or because it wasn't the right time or a thousand other reasons. So I guess my perspective would be that I support the idea of T (or anyone) offering negative feedback in a reasonably sensitive manner, but that it can also be bungled. The client's job, at least in part, is to figure out how you can do a better job accepting the negative feedback, while also feeling free to tell the therapist how they affected you negatively.