Im not sure what you mean by "nos distortion"
The measurements on asr and sbaf etc were taken in NOS mode. What distortion??
https://www.superbestaudiofriends.org/index.php?threads/kte-may-technical-measurements.8933/
Just because NOS R2R dacs in the past didn't measure too well, this was due to the difficulties of making an R2R ladder that is accurate to a high bit depth, not because they were running NOS. Stuff like the AGD R2R dacs measured poorly as did many R2R IC's. But nowadays there are several choices for R2R dacs that perform very well.
If you're talking about ALIASING, which is something quite different....
The holo may uses an analog reconstruction design which combats aliasing whilst retaining NOS impulse response. Exactly how they've achieved this they've not said. But the results speak for themselves subjectively and objectively.
Though its also up for debate as to how exactly aliasing impacts things audibly even if you do nothing to combat it, such as the denafrips dacs (which also measure quite well, and subjectively are widely loved).
Additionally, R2R dacs do not need noise shaping like DS dacs do. You CAN certainly use OS+noise shaping on an R2R dac and there can be benefits to doing so, but it is not "required" like on a DS dac. R2R dacs do not generate switching noise, noise shaping to filter out artefacts from oversampling isn't needed if you aren't oversampling.
If you want to argue about whether or not NOS/R2R dacs are any good, there are other threads to do that. But it might be worthwhile learning a bit more about the topologies you're laughing about first.
In any case, this thread was intended to mostly be talking about the chord stuff, I would appreciate it if you could avoid cluttering it with "haha dac bad" posts