That being said, I still disagree with him :) . Here's why:
Simple is good: When comparing countries on a thematic map using color on a 2D map just works, 3D prism maps in google earth create problems that require users:
- to click something (e.g. to find out the true value)
- to navigate to a new view (usually involving 1)
- work out what they are looking at (most users are used to 2D color thematic maps, they don't know what a prism map is about at first glance)
Which neatly makes a more general point; if you can present data in a way that is both simple and effective then you have to have very good reasons to switch to a more complex presentation technique.
But back to the main point: I'm really pleased to have someone else discuss design of content in Google Earth especially someone quoting design texts.
*to psychologists its known rather grandly as 'extrinsic cognitive load'