Excuse me, I don't have a choice to embed or not to embed a TrueType font in a Word document
Possibly an opinion instead of valid legal arguments. You're not excused. You have the choice to not use DOCX. Even if you are forced to use DOCX, then you still have the choice to not use a (specific) font which license doesn't allow you to distribute it as a font. And this is hardly relevant anyway.
If you've obtained my UNICODE.DOCX, which includes a font protected by copyrights (allowing you to read it, just like you can read a newspaper which uses a copyrighted font) and which requires you to perform an unusual unzip operation to obtain the font as such, then you're guilty of
heling, in your jurisdiction. Even here your arguments are showing that you are aware of copyrighted fonts, so you should check before blaming the author of UNICODE.DOCX (or the seller of a cheap bicycle, you know that bicycles aren't cheap and you know that fonts can be copyrighted).
Perhaps the worst bit is that Microsoft's "solution" makes it easy to distribute fonts, according to your interesting UNZIP option. Nevertheless Microsoft is a good source for what's allowed. Do not distribute used fonts which are copyrighted. Please...