John carmack said much the same and I have been following it ever since. Of course linear code is easier to read, if follows the order of execution. It minimizes eye saccades.

Some code needs to be non-linear for reuse. Then execution is a graph. If you code does not exploit code reuse from a graph structure, do not bother introducing vertexes where a single edge suffices.

http://number-none.com/blow/blog/programming/2014/09/26/carm...