It's a little disappointing to see what little they announced. However, there are a few important things to keep in mind.
1 - E3 is not over yet. They could still surprise us.
2 - Just because games weren't announced doesn't mean they aren't being made. They don't have all day to have a press conference, so they had to pick and choose what they showed. Maybe they didn't make the best decisions, but that doesn't mean they don't have anything else. They went with the more casual stuff because E3 is heavily covered and Wii Fit will get out to more people that way. Do you really think EGM or Game Informer or even Nintendo Power will cover it? Probably not. However, those publications, in addition to GameSpot, IGN, and 1Up will cover the games that hardcore gamers want to play. So even though we didn't get what we wanted from the press conference, it's out there somewhere.