This was the first Frasier episode I ever watched from beginning to end. When I watched it the first time, I would have agreed with the reviewer who said it was too much of a personal attack on the real-life Dr. Laura. However, after watching it a second time and being more familiar with the series, I can take a more balanced view.
The irony is that in reality the episode itself proves that Dr. Nora's brand of advice is more realistic than Frasier's. Dr. Nora advises a caller to cut a difficult person out of their lives like a tumor. Frasier thinks Dr. Nora's problems could be resolved by a visit from her mother, the relationship from which her lifeview stems. When we meet the mother, however, we realize that she is too unreasonable for Frasier's type of therapy. Not everything can be analyzed into a satisfying resolution. Some things just have to be accepted or ignored. The episode ends up demonstrating that Dr. Nora's approach is the more effective one in terms of dealing with toxic relatives. As usual, Frasier's meddling leads to disastrous results.