I have done intensive group therapy programs a few times, and had a therapist for a long time.

The intensive group therapy seemed to help me quite a bit more than seeing a therapist one on one. Tho I already had a lot of insight into my own stuff and I am not sure, she didn't seem to know where to go with me, but she was a lovely women and good support when I was in real trouble with bipolar. Mostly we just chatted here and there, and she would advocate for me to my pdoc when I needed it.

I have read many times that short term therapy can achieve better results than long term. In some countries they have models based on this and what seems like better results. I could see this being even more true for people who do not have extreme problems. Long term therapy to me does kinda seem to dwell on stuff longer than needed, analyze every instance or thought, or feeling. And can create a dependent situation instead of person becoming independent and able. That is just my opinion tho.

So I think it does have a place, and appropriate use.