In the world of web development, and devops etc. this is probably very true.
However there are a lots of non-web orientated systems out there; banks, emergency services as an example. I fall into the latter, and have also worked in the former. In those kind of environments we often have an architect (who is indeed quite a talented and hands on coder), but the hairy implementation details of the architect's design tend to be worked out either by dedicated designers, or some other form of implementer (systems administrators/programmers).
However there are a lots of non-web orientated systems out there; banks, emergency services as an example. I fall into the latter, and have also worked in the former. In those kind of environments we often have an architect (who is indeed quite a talented and hands on coder), but the hairy implementation details of the architect's design tend to be worked out either by dedicated designers, or some other form of implementer (systems administrators/programmers).