The specs were by design. The realization is that the functionality that Kinect and MS cloud tech provides are more awe-inspiring to the average consumer than 60 frames per second.
Can the average person tell the difference between 60fps and 30fps? No. Can the average person tell the difference between Kinect and Move capabilities? Yes.
Let Sony build a more expensive box. HOPE and PRAY that Sony builds a more expensive box again like they did with PS3 and Vita and PSP. You want to be able to undercut Sony and keep them bleeding money once again. There is no way to lose to Sony in the long term because this server technology rolls out to every Windows & Xbox powered gaming device including Xbox 360, Windows PCs, Xbox One, Phones, embedded TVs, embedded cable boxes, etc.
Eventually the concept of console generations are over as long as MS keeps the Xbox controller consistent across generations, PCs, and devices. Gaikai vs. the company that built Azure and deep neural networks? Good luck Sony.
Hold onto your 360, because before the end of this decade this technology rolls backwards. If they're feeling goofy enough maybe it even rolls backwards to the OG Xbox. Sony could do the same with PS2/Gaikai but they forgot to build Internet connectivity and HDD into those 140M consoles.