The public's inability? What about everyone's inability. No one deals well with epistemological problems on a systematic scale, not even the technologists who delude themselves into thinking that they're driving anything.
I am exactly talking about psychological limits. The difference is that I don't think the psychological limits of the creators are any different from those of the users. If anything, I think the creators are more psychologically limited than the users. This is because the creators need to explain to themselves why they are creating the thing - everyone else just puts up with it. When you say ppl will either be duped or completely check out of discourse, don't forget about yourself.
Also, of course I didn't read the article....