This does not mean that it is not compromised, of course. But its why people would believe it isn't compromised. And its a much better reason than your sarcastic imitation.
The same is true of Hushmail. How did that work out?
Mostly, I don't like seeing condescending, inaccurate statements.
http://www.wired.com/threatlevel/2007/11/encrypted-e-mai/
There is nothing inaccurate about claiming that people believe that DDG is protecting their privacy because of how the website presents itself and the claims made by the company. That is exactly why people believed (and many continue to believe) that Hushmail is protecting their privacy. The way companies advertise themselves is not necessarily reflective of reality.