This - Gizmodo wasn't banned, they just weren't given press credentials. They could have bought a ticket just like everyone else (well, at least be fore it was sold out) if they wanted to make sure they could have someone there.
Why do you have an issue with saying banned? It's not like they were forgotton, or passed over due to space constraints, they were specifically not allowed to attend even after thy requested a pass because of the iPhone leak.
Except it's not true that they were "specifically not allowed to attend." In fact, they were specifically not given the special privileges offered to other journalists.