Since 2005 Nintendo has been spending more and more time at the E3 Key-Note (press conference) focusing on their "Casual" games ... People didn't really understand why they were showing Nintendogs, Brain Training and Electroplanktin at the time. People don't seem to be aware that Nintendo has continued to release the same kinds of games they used to, at a slightly faster rate than they used to, and maintain similar quality levels as they used to even though they have been focusing a lot of attention towards the "Casual" market.
Realistically, within the next 6 weeks (probably within the next 6 days) Nintendo is going to announce a couple of huge "Core" games and people will suddenly forget that they weren't the focus of the E3 press event ... In 2009 when Nintendo focuses on "Casual" gamers at their E3 press event the outrage will begin again.