The spatial (usually largely 2D in IC) constraints are a huge limitation for circuit design. I'm quite sure chips (or breadboards) wouldn't be designed like this if the physical world wouldn't force the geometry.
I meant more that the very concept of an IC is a good idea, and like a good abstraction in programming.
I think pjmlp was getting at is that when using visual programming, a lot of people seem to turn off (or not cultivate) the part of the thought process concerned with creating good abstractions, despite it at least being possible to do so.
