I think they already acknowledged that when he said "It's all about the games".
A number of journalists have pointed out that the main reason why the announcement was more focused on its multimedia aspects is because it gets massive news coverage worldwide, including for people who aren't necessarily gamers because its a big reveal. Everyone who is actually interested in games knows that E3 is about the industry and because there is so much news coming out of the trade show, its features which might sell it more so to non-gamers aren't so prominent and can get lost.