Hyperbole comes out of frustration, frustration comes out of anger. The anger comes not from the fact that the iPhone 4 has to be held a certain way (or rather not held in one certain way), but from the fact that Apple tried to sneak it past the radar. A phone with a death spot is an industry first, don't you think that warrants a bit of beforehand information? A warning label? A note in the box?It is the manner of the complaints. The hyperbole of the issue.
That's why people are p*ssed off. The lack of information, the denial and the stonewalling. Denying early adopters the right to an informed purchase. The signal issue itself is not a cause for anger. It's only a cause for headscratching.