well, it's interesting indeed. I many times have set the thing on flat and cut it in and out, using different types of music all of which was very well recorded. I made sure to pay no attention to tonal balance and only attention to musical images, eg how well shaped out they were, leading edges to vocals and instruments, as well as clarity of transients and decay of cymbals, eg with jazz. to my ear, nothing is lost and often a subtle improvement seems present. but since this is designed as a broad Q mastering EQ for the studio, the real question is as follows: can putting a high quality high fidelity PRODUCTION box in the signal chain defy the old adage you referenced that the less boxes in the chain, the better the SQ. after all, every post-mastered recording we hear on our high end equipment had several boxes involved from mic to mixer to mastering.
food for thought! all I know is that what I hear coming from this setup is highly musical, highly hifi, and quite fun to play with. it's like magic sauce. it seems to me in all my listenings over the years to be the best way to approximate a $100,000 system with only about 10-12 grand invested. it really does give the great gear a run for the money.

