I really liked what this blogger wrote, and I agree with her about having to experience the pain of the emotions on a truly deep and genuine level before we can work through them and move on. That said, I also think that she was very lucky to have a therapist who really understood the real reasons for good boundaries and he used them to bring about learning and growth in his client. He was thoughtful in enacting them and he spent a lot of time discussing her reaction to them and what emotions they elicited deep inside her.

Unfortunately, I think that a good number of therapist don't seem to have that depth of understanding and skill. They simply read the textbook on what particular boundaries are important in therapy and quickly put them into place . . . or frantically put them into place after therapy begins to go off the rails. They don't seem to use the boundaries as an opportunity to bring about powerful and life altering change in their clients. Instead, they view boundaries as things that are there to protect themselves from the client. This usually becomes evident when the client reacts to the boundary in an hurtful or angry manner and the therapist simply fails or avoids examining the client's reaction in depth, stating, "It's there to protect you." Many therapists jump into lecture mode instead of exploration. The important learning part for the client is bypassed because the therapist doesn't really understand the critical part of exploration.
Just my take on the subject.