The article was 2006 talks about stuff that happened back in the nineties. The cruft from then is still present in modern day Word. Calling it outdated is like saying your grandfather's recounting of his childhood is outdated.
The first article that's more relevant to this discussion was written in 2008 and covers the new XML version i.e OOXML. The spec hasn't changed much since then and ALL the points that he makes are still valid even today.
Can you tell us exactly what is outdated about the articles and what is not relevant today or to the FTA? Or I'll have to assume you didn't read the articles.