Sebastien Perier has a multifaceted critique of the Help system for After Effects CS5 in The Hugly side of CS5. He may have been able to go further (eg, offline systems) in what he calls hugly, but in fairness Help gained breadcrumb navigation though lost the Table of Contents -- at the cost of the clarity and convenience.
Since search results sometimes show results from other Adobe products, one might get more direct results using the PDF version, which can get dated if you don't download the monthly revision. The inclination for many people will just be straight Google. After Effects Help content has been making substantial improvements, and changes in access won't change that much. [edited -ry]
Apparently Help has at least two heads, one container and one content. Your guide to AE content is still Todd Kopriva and his blog AE region of interest. One aspect of the container is the Community Help Client, an AIR-based Help viewer which has its own forum where you can give feedback to the powers that be on your ideas for containing the information explosion.