The article talks about Microsoft, and boy, it's even more terrible in some respects: for example, language of some Office tools like Excel is bound to the organization ! I worked for a French company, and I was forced to use web Excel in French, including keyboard shortcuts being FR-specific ("ctrl-g" for "bold" - "grossir"). I had my language set to English everywhere in browser, OS, MS profile, Office profile etc.…
Maybe this is due to the fact that Excel documents break if you change language, as function names are localized?