There's definitely some extreme speculation going on--both from those trying to maximize as well as those trying to minimize this issue. It will take some time to get to the truth. This article is a perfect example of an extreme attempt to minimize this issue.
This article seeks to minimize the Guardian's original story by saying the Guardian is "walking back" their claims. That doesn't seem to be the case. This article cites a paragraph near the end of a minor story published days later as the passage where they "walk back" their original story. The intent of the paragraph seems to be to illustrate that both the "direct access" claim from the NSA and the "no direct access" claims from tech companies can both be true. The original article doesn't seem to be changed.
Beyond that, the Guardian never claimed the NSA had "direct access". They claimed that the NSA slides stated the NSA had direct access. The Guardian has not stated they read too much into "direct access" in the slides, and the original article is pretty clear that "direct access" is simply the NSA claim in the slides, not the Guardian's verdict.
There is another remaining issue: the original article claims access to "live communications", which has yet to be supported by a slide, but it would pretty much rule out the SFTP-only possibility that some people seem to be accepting as fact at this point. Maybe there is direct access to live information from Skype and Apple, but Google insisted on SFTP? We still have a lot to find out.
It could be that the Guardian did exaggerate. But it is far too early to conclude that with so many questions remaining. Not all the companies have described their systems.
One thing is certain: the Guardian does not seem to be walking back their claim.