Earlier quoted context omitted.
This question may be a bit naive, but it comes from somebody who has never used asciidoc but used a lot of LaTeX to make reports, poster, presentations, ... Why are you using asciidoc to write a book, instead of LaTeX ? I see the advantage of using this for documentation, but for an entire book ?
There’s no point using latex if your book has almost no formulas. If your book has a lot of them, then yes I would say using latex makes sense.
In a book one often needs to keep track of local references (to figures, tables, sections, etc). How this could be reasonably done in markdown flavors?