I think the Zelda series is on the cusp of becoming less special. Luckily, Wind Waker, Four Swords and Twighlight Princess are all different enough in terms of gameplay, graphical style and the usual elements that they can coexist peacefully. I think Super Smash Bros is a different case because it's a fighting game. I believe adventure games can get away with more sequels because they rely more on plot and level design. A new Zelda game could play and look exactly like Wind Waker and it would be worth playing for a lot of people to experience the new story and tackle the new levels. Unless they change the fundamental gameplay of Super Smash Bros, all they can offer are new characters, items and levels - not bad, but I think they've already achieved a lot in those areas in Melee. Why not give it some time so new characters and changes to old ones can be added?
I liked the article as well. I don't remember enough to comment right now, but it was good. I agree with Ian on it being a good, neutral editorial.