Moving into version 6.0 of EXP has raised some interesting problems. I have grown disillusioned of the cruft that accompanies what is essentially a static site in WordPress. Also the massive challenge of parsing the data out of 1000 cascading lines of styling and php and now js makes automation quite a challenge (for a regex rookie like myself).
The XML exports have helped. The new rabbit hole is asciidoc markup. It is supposed to convert to HTML5, PDF, EPUB, DocBook from the same markup. There are many bearded men between that theory and reality. However working in asciidoc is orders of magnitude easier than the ultra bloated HTML, CSS, PHP, JS editor that is Gutenberg and WP. WordPress is still amazing. Just not amazing for my immediate needs.
This image pretty much describes everything.