You guys are all focusing on his complaint of "too many games". If you notice, he's pointing out that they are actually too full of content for him to complete before the next shiny object grabs his attention.
Yes, we rate "playtime" as one of our attributes of quality. "For $50, I better get more than 1 hour of playtime out of an RPG or other exploration game" is a common concern; vs. replayability or addictiveness of the casual gaming world.
But just like Blaise Pascal's quote (http://www.famousquotes.com/show.php?_id=1045873) “I didn't have time to write a short letter, so I wrote a long one instead," (no, it's not Mark Twain), if we had games that took some of the time of adding just one more world or level and instead enhanced aspects of the main game, aka judicious editing, well, perhaps we'd be able to experience more of the game, and even feel a sense of completion. We'd have less stuff to conquer, but perhaps the conquering could be more subtle, have more ways to solve, have more realism, better characters, more complex motivations, whatever.
In playing some of these games he mentions as the good ones, I experienced meaningless quests (my friends called them "bolt ons"), busy-work, farming, all sorts of things that didn't move the story forward, or involved repetitive labor. They weren't puzzles, they were just grunt work. These could have been edited out and the effort spent elsewhere, reducing "time to complete" but making a good game even better.
So, if a game needs lots of time to complete a vast and compelling story, or it's a subscription game that needs more content, so be it. But instead of a game requiring as much work as, well, my job, perhaps a game that gave more enjoyment but also allowed me to feel a sense of completion would be a popular game.
Look, sometimes I love a 500 page book or a 3 hr movie or watching a miniseries or season in one sitting; we all do. But we don't want them all the time. Perhaps we should hold games accountable not on "hours to complete" but on "satisfaction felt upon completion, given that the game should take more than 1 hour". This puts the emphasis on immersion, storytelling, interaction and not so much on "cram more junk in".
As an aside, if we complete more games and feel more satisfied when we do, we will buy more games. Sounds like a win for both sides.