Given that Intel is the weakest in servers, they rushed it. As soon as they could get some units, however small, that met clock rate criteria, they did the demo. It is called a face-saving event. It doesn't have anything to do with being smart, it has everything to do with reading between the lines. Intel needs to demonstrate a superior server product. They can't do it 65nm vs. 90nm, they lose. So they extrapolate.
You hit the nail on the head. Intel does have a history of rolling out dual chip packages in an attempt to stem defections and market share losses. At least that's what they did with their initial dual core demo.