Can't work out why Dr Doherty would say those things; or maybe we are misreading what he is saying. In any event it seems like poor PR - after reading that I feel less inclined to consider DACS products.
I must admit that I had similar feelings. If he has strange ideas about digital audio basics then what other areas of audio engineering does he also have strange ideas about and do they have any impact on the sound and reliability of his designs?
JRP Music - Audio Mastering and Restoration.