It's really over-stated that it has recessed mids.
Every headphone that has bass that is slightly higher than the mid-range has technically recessed mids. It's just beyond over-stated around here. No headphone is ruler flat. Vocals and instruments sound great, not distant, with the DT770. If it's mids were recessed to a point that was appreciable, vocals would be awful.
Sadly the DT770 gets called overlly bass when it's not. And overlly recessed mid-range when it's not. I don't know how this keeps just perpetuating, but it does...