My point was that the attitude of being able to explain systems by drawing them, leads to over-architecting them. If you stick to prose then you can't as easily

My point was that the attitude of being able to explain systems by drawing them, leads to over-architecting them. If you stick to prose then you can't as easily delude yourself about the complexity by staring at pretty pictures. I was not considering the case of documenting already existing systems, just talking about the planning stage. Your point is well taken.