Unfortunately, his reasoning is incorrect. USB errors cause clear, audible errors. They will manifest themselves in glitches, clear noise and distortion. They never result in what people state as "more detail" "better sound stage," "lower noise," etc.
That is beside the fact that USB errors do not happen in 3-6 foot cables people use for DACs. To cause errors for one of my tests, I had to string two super thin, crappy 10-foot USB extensions and connect that to another cable to make it happen. Once there, the effect was readily audible and measurable:
Here one device -- the ISO Regen -- started to lose data. Once there its noise floor shot way up as you see in red. The cheap USB hub though, continued to sing along with no errors as seen in yellow.
Here is the sound coming out of the ISO regen connection:
https://www.dropbox.com/s/h36zguooded28l4/Behringer Extension cable with Iso Regen.wav?dl=0
If I shorten the above cable ever so slightly, all the errors go away and no difference is audible.
So no, there is no error case here to worry about. Gordon needs to come up with another explanation if he wants it to hold water.