My take on this is:
It's probably that they *started* putting people (who were admitted) into their database, but they aren't completely done. Note that the application status hasn't changed or anything like that...
Then again, it could just be wishful thinking.
On the other hand, I'm the guy who didn't find out that I got into Cornell until the day of the notification b/c my phone was blocking their calls...
So my point is: There could be 100000 reasons why you didn't get the email, but could be in...