As long as ArsTechnica don't "steal our" Mossy full time. Otherwise we'd have to burn them down
It's quite clear that you cannot cover every game, but I think your selection was very good as far as I can judge it. Obviously some games automatically evoke others (e.g. the second screenshot immediately reminded me of Dark Crystal and The Hobbit), but with an article focusing on the history of a certain game genre it's most important to feature games that pushed said genre ahead, either technically, story-wise, or from a usability standpoint.
It's also good that you mentioned games like Myst, despite the fact that you don't like it either (a fact well hidden in the article), because a lot of people will expect it and to be honest, it did push the technical boundaries and lead to games being distributed on CD-ROMs.
I think when your heart is in it (and you quite obviously like adventures, otherwise you wouldn't have written this article) it's hard to stay objective, but I think you managed that. OK, you bashed Phantasmagoria, but there's not much positive stuff you could have mentioned in that case and the bashing might be expected by most readers.
I don't know enough of the indie or fan scene to comment too much on that. But I know what you mean when you say that they didn't really progress the genre. Most of them seem to be "more of the same"; similar story lines, reused graphics, and the same dated control scheme. Few really advance the genre, I guess.
I guess the only thing I missed was some hint on the Monkey Island Special edition that might hint at an adventure revival. But that's just pure speculation and it's good that you stuck to the facts.
One thing I missed in the beginning were the Magnetic Scrolls adventures, but then I remembered that they are mainly textual, with the occasional (for the time really beautiful) image.
BTW, I haven't read any of the comments on ArsTechnica yet. So if there is an overlap between those opinions and mine it's pure coincidence.
Slightly off-topic: Not too long ago I had a lot of fun playing through an Xbox Live RPG called "Cthulhu Saves the World". The graphics were 16-bit style at best, but there was lots of humor and the seemingly primitive combat had some nice tactical twists to it. It's been years that I played a game till 5 am but this game made me do it again, despite the fact that some part of it was simply grinding for level-ups to have an easier time in the next dungeon.
While I'm also prone to be awed by technical splendor (I was absolutely impressed by Unreal in the beginning, but got bored to death in level 5 or so), there is still hope that I haven't lost my taste yet for neat games that are just fun to play.