I think this article mixes melancholy, "Weltschmerz" and actual depression in a very nonchalant way.
I can see how people who tend to ruminate would also do that on daily problems and might therefore yield better results but to point in the direction of this actually benefiting a truly depressed person is beyond me.
When you are actually depressed, your whole thought process is quite literally de-railed and poisoned and you are ruminating in a very unhealthy way and typically you are unable to "dig yourself out", no matter how good at deep thinking and ruminating you might be. Even worse, you will ruminate yourself even deeper into depressions. And then there is also "clinical depression".
No doubt it's a spectrum. Like autism, near-sightedness, and skin color. I'm a doc in the military, where there has been a striking uptick in depression and related issues. At some point, in the clinic, you've got to make decisions, and the analytic rheumination hypothesis is useful. Are there other kinds of depression? Probably. Is it possible to get caught in a downward spiral from which one can not escape on their own? Sure. Could the AR hypothesis still be relevant in some of those cases? Absolutely.
I can see how people who tend to ruminate would also do that on daily problems and might therefore yield better results but to point in the direction of this actually benefiting a truly depressed person is beyond me.
When you are actually depressed, your whole thought process is quite literally de-railed and poisoned and you are ruminating in a very unhealthy way and typically you are unable to "dig yourself out", no matter how good at deep thinking and ruminating you might be. Even worse, you will ruminate yourself even deeper into depressions. And then there is also "clinical depression".