I feel like if somebody did what Apple did for the cloud icon (i.e., came up with a canonical geometric representation[1]) to the 'Graph Diagram'[2] mentioned in the article, then you'd find that everyone would just wind up using that.
[1] http://www.hanselman.com/blog/ThereIsOnlyOneCloudIconInTheEn...
[2] https://bold.pixelapse.com/minming/share-the-icon-no-one-agr...