It wouldn't change the analysis, obviously, but it makes some difference to the reader whether it's written by one person as part of ongoing debate or is the result of drafting and redrafting by some sort of central committee handing down the party line. I don't think the anonymity is massively important, but I don't understand the reasoning behind it and would appreciate some sort of explanation of why the author doesn't put their name to it, as with most articles.
Since you asked, I thought the article itself was fairly unexceptional and didn't really say much that I haven't read before, but then I'm no great shakes at political analysis and the nuances often pass me by
That's why I prefer reading debate to tracts, because eg the points made by fridge, and the reaction to them, illuminate more than I get out of a carefully crafted article.