I think you will find he said exactly what you said, that employees DONT recommend a case.
Yes, dropping it is not normal use, but I think they imply that the iPhone 4 will withstand a lot more than what previous generations could, nobody is saying they can drop their phone and it will be unscathed just that the marketing suggests that the glass should be more resistant to the same damage you may have witnessed in previous models or past designs.
No. He said they recommend against a case. Thats not true.