Yup, the 'well duh' folks can just look at the pretty diagram and move on, whereas I'm all for its inclusion in the book! Yes please :) I love flowcharts and decision trees, as I too, am a visual learner.
Hey Adam, have you seen the similar charts in the 4e DMG2, Pathfinder Gamemastery Guide, and the WHFRP 3e GM book? They make some assumptions about system expectations on the GM as author, but I find the addition of the icon pictures in the example flowcharts (locations or NPCs or monsters primarily) adds even more 'oomph' to their visual appeal.