Clearly performance has come up to levels that have leaped waaaaay ahead of what even the best human ear on the planet can discern. What's IMO still lacking is the universal awareness that it's built-in, configurable sub out and room correction we need to add to the mix. Unless you live in a medieval castle, without room correction you'll probably never exploit the theoretical performance of such superb-measuring equipment.
Going forward, I will never ever consider a DAC that doesn't have that feature set built-in. Let's face it: DACs are the new preamps for many of us, and IMO in this day and age it's great if they pass the measurement bench in such stellar fashion, but it's underwhelming I don't get the functionality and configurability to make it sound at its best in my listening room.
PS: And note my listening room is pretty darn optimal, cathedral ceiling, set along a long wall with open space etc. I still want those features going forward.
PS2: My cat agrees too. It's kind of fun to see he likes to sit exactly in the middle of the speakers, and when I play an 18kHz test tone (which admittedly I can't hear, welcome to being in the 50s :-D) he checks between the speakers to see if there's a mosquito there... :-D
PS3: Oh add awesome headphone amplification to the mix, I forgot that!