The post does not discuss its "sophistication", it merely validates Google Webmaster Tools's built-in labs feature 'fetch as Googlebot,' which the Official Google Webmaster Central fails to mention (curl) in its long post (
http://googlewebmastercentral.blogspot.com/2009/11/generic-c... ).
The point besides is that you do not need to have a Google Webmaster Tools account to use this feature.