Thanks for taking the time to put together such a thorough comment, Lloyd. Yes, I probably should add the "works with Word" to the story—I hadn't even thought of it until someone mentioned it in a comment on my blog.

You're right: Word is pretty much the industry standard for editors because of the ease of customization and function in general. And there area a great many editors who bemoan the loss of WordPerfect, citing it as their all-time favorite word processing programs.

So many writers and editors fear that their jobs are in jeopardy with the rise of AI programs, but as you pointed out, maintaining the style and tone of someone's work is always a challenge—one that AI doesn't account for. Any check through Grammarly's suggested "fixes" will show that. The beauty of the language is the incredible versatility that can be achieved by a combination of rules, styles, and plain ol' individual creativity.