More accurately:
They didn't admit the issue, they claimed that some people might have an issue.
Didn't address the issue with facts and figures, they simply claim that other phones are the same in terms of "bars" (and got the columns mixed up). If all phones are the same, why does only the iPhone 4 have this issue?
Some waffle about their PhD scientists and engineers and $100 million test chambers.
They then claimed that hardly anyone complained or returned their phone. Why bother complaining when Apple already know, and why return it when you really like the phone and just want it to work?
Offered a case. That isn't a solution, it's a bodge. A solution is replacing or repairing the phone to make it work like it should. Don't forget, though, that there isn't an antenna issue. We're just offering the case for those who think they might have an issue.
End of line.
Do you drop calls on your iphone often? More than previous phones?