I am saying that lucidity in dreams is increased by being lucid in life. And that to be lucid in life you have to be comfortably aware. A technique that has brought me this state is vigil. I am not saying to do this for 2, 3 days without sleeping. Everyone know their limits and possibilities. It is a matter of recognizing the existence of and getting familiarized with the state, which is easily obtainable, depending on will alone. It is a matter of teaching the brain, getting in control of it.

I can agree with "we are dreaming all the time we just don't remember it", but I reckon that to remember dreams might be an impediment to achieve an emotional well being. The memory of a bad dream, for example, an oppressive, bizarre and recurring one which has clearly overrided its capacity of being a tool to self-knowledge is not a good thing for the sum-total of being, specially emotionally. By this, a non remembered dream is an unexistent one. It may be as you say, a radical technique, but for some, who sleep to much both awake and asleep, and the ones that are willing to stretch and try all the possibilities, perturbing the system is a way to lucidity.

To conclude, the lucidity obtained with the method is for the waking state, awareness in life. The new ways and habits thus made possible and the unfolding novelty on day-to-day life will give way to a superior dream life (because waking life feeds the contents of the dream state), thus making much easier, desirable and pleasant a lucid dream.