The elimination of flying wires was not mentioned because they are a pain to model, but because they had a negative effect on drag. (on the full scale) Another thing that we see with Fokker was the EV/DVIII. With the parasol wing being fully sheeted, thus ushering in skin strength, which creates more strength as well.

Interesting for me this last year, I flew a Triplane model with a scale like cambered section. Only having experience with the Balsa usa airfoil on my WW1 models, I was surprised to find how ineffective the ailerons were. The stock BUSA models can be flown around all day with just ailerons, but that camber forces you to use rudder otherwise they will not turn, so I found.
This is good marketing as modelers do want easy to build and fly planes. Of course we can cheat with mixing as well if we want now. The lesson I learned though was that heavily cambered wings need rudder to turn. In fact it seems that you have to lead with the rudder.