Where would anyone get the idea that therapy successes are under-reported? The whole profession fawns and slobbers over a select few success stories, and bends over backward to massage outcomes in their favor, while systematically avoiding even the topic of serious failures.

Just to clarify, I consider the system flawed independent of whose hands it's in. Thats the whole point. A pathological system cannot be made well by putting it in the right hands. Though I can see how its pathologies can be somewhat mitigated or overcome in some cases.