So what are you suggesting? I can't imagine people out there saying to themselves"This is simple; I think I'll make it complicated." or"This is complicated. I think I'll oversimplify it."
I see people on this thread saying this all the time: "My solution is the ONLY solution because it has enough power to do all the books." "My solution is the ONLY solution because it is simple enough that any volunteer can do it." Look, there are some really complicated books out there which probably should be done in PDF or TeX. But about 90% of the time what I am seeing is really simple books, a novel or a memoir, made almost exclusively out of paragraphs of simply European language text, with maybe a cover image, maybe a few illustrations, a title page, chapter headings and subheadings, maybe a chapter quote or poem, maybe an embedded "Dear John" letter, maybe an embedded poem or two. This is not rocket science folks! And guess what: PG and DP are still getting these things wrong! IE things almost always look passable on most desktop HTML browsers, while at the same time are almost always displaying large formatting errors on EPUB and/or MOBI readers. So why can we not get together and figure out a practical solution to fixing all these broken "dirt simple" books ??? Its not hard to write a simple book in HTML that works on pretty much all devices. But what is happening instead is that people are working really really hard to turn these dirty simple books into something that DOESN'T work on pretty much all devices. Once people become enthralled by geeking around with all the little bits and pieces of machinery inside HTML then guess what they create something which doesn't work. Why are they doing this? A: Vanity.