...And yet the reception is even better with a bumper. In other words you're quoting out of context and you're reading too much into the use of the word external. Since you like Anandtech, check out this article:
http://www.anandtech.com/show/3821/iphone-4-redux-analyzing-apples-ios-41-signal-fix/3
I'm not really upset that the iPhone has issues. A lot of first generation products from Apple have issues and are still quite usable. I have a first generation alu macbook that I like, even though the screen is not very good. I knew full well there was a risk by buying first generation.
I do find it regrettable that Apple had to bend the truth so hard it broke at the press conference. The fact is that the iPhone has the problems all phones have, and the additional problem regarding bridging the antennas that other phones don't have.
That's why a bumper fixes the problem.
Anyway, I realize a self respecting (or otherwise) fanboy would never agree to that but it is the facts none the less.
Bottom line: Free bumpers is a good workaround. Just don't lie about it.