I think he was talking about general ignorance (since he brought up vinyl) w.r.t. digital audio / analog audio (and probably had in the back of his mind 10 other topics some audiophiles get wrong).
Perhaps, although he specifically mention the bit depth/sampling rate issue.
In my long observation of hardcore audiophiles they are willfully ignorant; at least they reject measurements and objective evidence in generally. Their maxim is "Believe your ears", which is a totally subjectivist argument. However I'm not sure it was always such, (going back as far as I do).
It seems to me there was a trend back to tube gear from solid state going back to the mid-'70's that picked up speed in the '80's. This trend was founded, IMHO, on the experience that solid state equipment that
measured well, (by the methods & standards of the era), frequently
didn't sound good. (I've had my own experience of that phenomenon.) To be sure, much S/S equipment today measures much better than anything in the '70's, (
e.g. Hypex and Purifi modules).
I think we are still struggling to understand how perceived good sound correlates with measurements -- as I believe it does contrary to the "Differences are all in your head" crowd.