In light of the usual purpose of these lists, the Globe may not have created a better tool for organizing the site's articles than lists that stick to 25 or 20 articles, but a longer list does shed light on the wide variety of readers' interests. The number of articles sent over 20 times in the last month is vast, and we wouldn't really know that judging from the standard most- lists. And there's little reason to believe that the Globe's readership is unusual in this regard, or that other sites don't reflect a similar distribution. They deserve credit for publishing more data and letting the reader decide, however, I doubt many readers care to see that x number of articles have been sent once or twice.
I still prefer the simplicity and utility of a shorter list, but the Globe has done something different and fascinating by revealing this long tail data.