There is nothing in the HTML we create that stops readers working.

The main criteria for Accessibility concerns providing things like alternative text for graphics, links, audio, not using using colour to impart important information etc. All this is possible if you so wish.

And for the 'tag soup' comment you must be looking at some other products or web pages. Our pages are incredibly simple HTML, one line after another and not a lot else. Try looking at the HTML produced by other web authoring tools or indeed look at any typically complex website if you really want to see indecipherable tag soup.