Cable synergy applicable to digital IC too?

I don't have a lot of experience with cables, but have done some research and I'm aware many people talk about cable synergies within the system: the more cables of similar technology one uses, the better. Nordost also recommends the same thing.

So I have Purist Audio Museaus analog ICs and speaker cables. Now I need to get a digital cable (coax), and I'm wondering if the synergy paradigm applies there too. I was looking at PAD Genesis coax, that has true 75 ohm RCAs, but was wondering if I should look elsewhere too. Your thoughts?

Coax cable is to be used between SB Touch and Metrum Octave DAC.
I'm overseas so unfortunately cannot use The Cable Co lending library.