I think article authors deserve more credit than just a link to commit history, which can include trivial changes like spacing and renaming. This serves as a good incentive for contributing articles, like receiving credit for CF blogs and SO posts.

As a comparison, if you look at source code for big projects, you will often see a single author or small group of people are responsible for most of the article and are credited as authors. This is also the case for https://usaco.guide.