Well, when giving advice it was not my intention to forestall any knowledge expansion ... in Spain where I live, from the sixties at least a number of engineers (mainly industrial and agronomes) have been designing their buildings, and with the apparition of the big technical teams it may well have happened that within them some engineers have developed sound ability in architectural matters, whomever be leading the team, since mostly a design and directorship of works team. The bigger firms use to be thought (out of the scope of their works) as engineering teams so there even more properly.
By now and perhaps on the recent history of the practice of the profession of architecture in Spain, I know that the ways I was trained to practice are being led to extinction; our profession has shown scarce stamina against the political drifts that are bringing it from what was (respected and illustrated responsible professionals) to what is becoming (a set of people with some space planning and -modern- draughstman abilities, and not too tall social standing ... and half the training, it seems a Brave New World scheme, thinking architects are seemingly dangerous) quite -likely and unfortunately- following the German model of an architect as a draughstman (then curiously Germany appreciating hiring from here architects with superior training, something does not add up).
I understand that it may look a bit surprising sometimes to see an architect answering questions in this engineering forum, but even today practicing the structural design of buildings I do not do but what I am demanded to do, warrant and undersign by law in my country; that others may have left the field to other competent professionals is something of their convenience or choice. No barriers in my part, life is difficult enough for everyone to tackle with.