I was hoping Canon might do the same with the 60D. After all, 2x18MP APS-C cameras are already available from Canon, therefore diversifying its commercial offer could have proven a successful move.
I do think that having the highest pixel-count in the APS-C market actually is a very successful move (from an economic perspective).
By the way, lower pixel count does not mean lower noise.
Most people compare noise levels at 100% view which does not reflect reality - it's the whole image that counts.
After all, the amount of light that hits the sensor is only depending on total sensor surface area (excluding microlens gaps of course) and not on pixel size.