How can you say that's not true when Ive crossed the border and been asked the same silly questions they ask on the regular line? Its just faster because the line is shorter.
I have GE and haven't even talked to an agent in the last four entries. The last time I didn't have to claim my baggage which was really strange (YVR).
That would still be a benefit even if that was the case, but I frequently do not have to say a word beyond "hello" or "have a good one" to the border agent.