However, what I can't understand is that they knew the unit was only going to have one video out and, for some time now, it was known that DP 1.2 would support daisy chaining. Thus, if you're going to release to market a product that doesn't have a docking station and only has one video out port, then at least supply the video out port that supports multi-monitors. I can only hope that there is some real logical rationale for not doing it.
The issue is with the Intel Core i5 with integrated graphics from what I can tell. According to the link you posted 3rd gen Core i5 doesn't support DP 1.2. What other option did MS have (and I don't think discrete graphics is a realistic option given the form requirements)?