Terrific article. Basically all of this still applies to modern games (2015 currently) which is both surprising and not, given that it was written in the early days of computer games.

Given the resurgence of adventure games, from remastering Grim Fandango to Telltales early games before they started making rigid story games with minimal choices, you should do a revised version of this. Are there any new points that could be added with the new technology, storytelling methods, and variations of ways an Adventure game can be made? What points don't you think are relevant as much anymore?

Also, what do you see as the future of Adventure games using mobile/touch devices? The Longest Journey was ported to IOS last winter with mixed results, as there is some pixel hunting in the original game that could lead users to simply poke at every object on their screen hoping to get something to work.