I had no idea and he didn't link to it and the explanation there is much longer and clearer than the one line remark about Japanese boss "sourcing the bride" in the comment was. People are taking the comment to mean some medieval style arranged forced marriage.
The paragraph starting with the sentence "Don’t have a wife?" and the next one after it mention that practice, it's too much to copy paste in here.
[1] as in - lengthy, detailed and well written, but I can't judge the content itself.