10nm has to compete with 3 generations worth of improvement on 14nm. Intel dug their own grave there, they gambled on 10nm, they lost, then they gambled on 10nm being good enough to beat improved 14nm processes, and lost again.
At 6-8 cores a 10nm with low base clock and decent boost speeds would probably be a decent option provided it doesn't throttle in the thin/light laptops of today.
Consumer is caught between worlds, the old power hungry one, and the new efficient one where long battery life and cool/quiet mobile systems are the norm (at least that's the hope).