The interview was kind of disappointing for me.
First of all, using a laptop to demonstrate the technology would have been a very good idea, BUT unplugged. If you have half a dozen wires leading to the laptop and you can not even see the back of it, then I simply claim cheating right away without any bad feeling of being unable to back this up. The presentation was short enough to run on battery and showing that there's no wireless connection should have been a matter of minutes.
Next and equally important step, you don't do that with one guy in your office, but in public (e.g. at PAX) accessible to everybody (should have invited the top three well known critics to attend ;)). That won't cost you plenty more time (I doubt that a day more or less would hurt them), but increases your creditability by a thousandfold.
And when you try to refute critics, provide enough facts (I understand that they can not go into detail due to competition) instead of just saying 'You're wrong, it works'.
He never mentioned the compression rate, the actual size of the demonstration on the HDD, or any single other fact people were disbelieving.
If the intention of that video was to get most critics out of the way and leave them to silent and productive development, then the presentation was an awful fail.