Meditation Nation, points out that one of the recent large meta-studies shows meditation isn’t any better than any other kind of therapy.
My comment about the lack of the earth-shattering results would be to not expect much out of 8 week studies on mindfulness. If you
could follow some people until they got a few paths under their belt,
maybe that would be a bit more interesting.
She also goes into a lot of good stuff about experimental design and biases, finishing with a need to be open about the downsides of meditation (de-repression of traumatic memories and the dukkha nanas) and a need to get to the bottom of what techniques do what.