Please link to the evidence of progress in the direction of 'genetic synthesis' meeting 'nano technology'
http://www.nature.com/nature/journal/v459/n7245/abs/nature08...
"I’m willing to bet, at some nebulous point in the future, long after Drexler and I are dead, someone may eventually develop a technology sort of vaguely like what he imagines."
It's been a while since I read Drexler's books, but if I remember correctly he alluded to more mechanical processes than biological ones. The article you linked to is purely biology and not really what Drexler was arguing for.
By analogy, when a carpenter takes a tree and cuts the tree into boards that's engineering, not biology even if the raw materials were provided by biology.
And when you then use those boards to build a house, that's engineering too.
Figure 4 is the takeaway: assembly of simple components into complex structures.