Should that matter for Moore's Law as it was defined, for number of transistors on a die? I thought that smaller transistors required less current to operate, so the incentives for lowering power consumption and upping transistor count are aligned.
But smaller size -> larger leakage current -> higher baseline power consumption.
For several years we have been at the point where the curves cross and power consumption is minimal. The strategy going forward is to turn off parts of the chip when they are not in use, or to reallocate functional units to other tasks (a la Hyperthreading).