This is just wrong on so many levels...really.
Basically Sony looked at the enhanced One controller and said: "We can do better." Or worst, in this case. Just think about this: if the enhanced controller price is 150€ (I'm taking the italian price here) vs 55€ of the standard one (so basically it's three time expensive, lol), how much an "enhanced" console can cost?
Also: probably developers will optimize games for the latest model, what does this means? Will they just lock out the framerate on 30 fps on vanilla PS4 without spending too much time on optimizing both versions?
Nah, this is a bad idea, really. It's like having a mixed product, a wannabe Steam machine but a close system at the same time.