You had written that all traditional preamps add color. Your incredible statement that even MadFloyd's Pass XS Pre adds "fairy dust" is pretty telling. That seemed to be quite an absolute position. Now you seem to be open to my suggestion that inserting quad DSD capability into a traditional preamp using high quality parts, build to a high standard and employing a superior volume control and output stage would be "a no brainer".
I think that my favorite manufacturer will decide what it wants to design and produce. It seems that perhaps the reference quality of the preamp function in these DACs is not so absolute, after all, and the critical lack of being able to serve the needs of many audiophiles who have turntables seems significant.