I have always considered a "perfect measuring" DAC like the Benchmark as something a mastering engineer would use. Providing a baseline of clarity and evenness so the engineer can add the "flavors".
In some regards, I would think an audiophile would want similar in their own system. The owner THEN can add their "own" flavor thru tone controls, warm/bright components, etc.
However, most audiophiles have an existing system and need a digital source that fits in with their existing system where a "perfect measuring" Dac may overcompensate for some sound characteristics (warm/bright/lean, etc)
Plus, with all that, we have the listener's room and their own personal Hearing abilities. The same with all of the reviewers out in youtube, internet or audio publication land. If we saw professional hearing test readouts with every reviewer, we may look at their opinions quite differently.