So that's months and months ahead or extensive playtest material eh? Uh... no. It's not. It's a thinly, very thinly disguised ad.
Man, there is no satisfying some folks.
Since 4E started, WotC has had several weeks worth of free previews in the month leading up to every product release. Continuing from previous years, each month, at the start of the month, we have the free preview column from Bart Carroll, which includes a list of releases over the next 3 months and at least one excerpt from each.
Within the magazine itself, subscribers get access to the significant advance previews from the PHB3 (and presumably future material once that releases), along with playtest articles that allow them direct feedback into the development of the game. In addition, in Ampersand, Bill Slavicsek often includes snippets of upcoming material, intended entirely as bonus info for subscribers. And, yes, he mentions whatever releases are coming out that month, and even with his potentially overwhelming enthusiasm, is a paragraph or two really causing any problems?
As a subscriber, I appreciate this information. I'm not sure what you would expect from an editorial style column, but if he removed those previews, we wouldn't be receiving anything in their place. We aren't losing out on anything by them being there. And non-subscribers aren't getting screwed over because they still have an enormous amount of preview information being sent their way every month!
If you view the previews WotC releases as a failure of marketing opportunity, it is simply because you are looking for ways to criticize them, rather than taking an unbiased view of the situation.
And honestly, that's a lot of the issue at hand. The problem with 4E 'marketing' is that we had a lot of game designers - who aren't marketing people - who were stepping forward and earnestly discussing the game and the design decisions they made. They weren't skilled at coaching this in perfectly designed inoffensive marketing language, and their enthusiasm - and honesty about what they perceived as flaws - rubbed a lot of people the wrong way. And while it could definitely have been handled better, I think it unfortunate that there was such backlash over that level of openness and communication, and that so many people began looking for ways to be offended.
Honestly, when someone says they are boycotting 4E because of the Gnome and Tiefling cartoon - one of the funniest things out there, something clearly designed with not the slightest hostility or intended insult, and something responsible for making the gnome more popular than it has ever been... I don't know how to respond. There are things WotC said that were genuinely ill-phrased or poorly thought out - that wasn't one of them, and the capability of fans to perceive it as an insult only serves as proof that there is not a single action WotC can take that won't end up offending someone.
Which isn't even inherently anyone's fault - people are different, and you simply can't satisfy everyone. But even in light of that, I think there are some who do seem to intentionally view things in the darkest light possible, and seek to call forth criticism in areas where it is no way deserved.
Like Joe Kushner's claim that WotC should cut off all communication with fans about upcoming products. That's a terrible idea. Yes, they said they were hoping to do a boxed set for Revenge of the Giants, and it ended up not being cost-effective to do so. That means they have committed some terrible wrong? I mean, one of the reasons they may have made that decision was based on the response received by fans - something they wouldn't even have access to without discussing this material in advance!
Joe is essentially advocating they never share any information with the community, never discuss what options they are looking at or try to get any customer feedback at all.
For myself, I'd much rather have the occasional disappointment when their plans change, and in return actually get all this preview information, actually have Wotc willing to openly communicate with their customers, actually have them make business decisions based on what is best for the game rather than over fear of disappointing a fan on the internet.