That to me is at least a step in the right direction.
Yes I agree it is. On second read of the excerpt I was a little less impressed because he said "without causing pain or distress" because that's the slope to "No no no don't accept ANY pain that isn't absolutely necessary" which conflicts with the view that we sometime choose pain for a greater pleasure. This is the formulation that, if adopted literally, keeps us tied to the cave or just outside it.
But the part about the issue being the mistaken view that "we can't live without it" - that is indeed an interesting way to look at it and does present some good talking points. Surely it's a big mistake to think that you can't live without massive power or massive fame or without living forever. I do like that as a point to avoid and be clear about.
I say all this based just on the excerpt - I will try to read the rest as soon as I can.