IMHO author doesn't know Word at all. Only one example of his ignorance:
Conditional text<nobr> <wbr></nobr>... Conditional text is a block that can be hidden or revealed as needed. This functionality is most often used for maintaining two versions of a document in a single file.<nobr> <wbr></nobr>... This concept is not supported in any way in Microsoft Word.
It' a lie. Word supports conditional text since version 6. And all I need are two fields - SET and IF.