Paragraph 5.4 leads with, "Sometimes, Web pages are created that will later have additional content added to them." Are you sure you want to keep "Sometimes" in this sentence?
In addition, this AGWG note draft states, "Large websites often have complex content publishing pipelines, which may render content dynamically depending upon a large number of variables.... " [2]
[1] https://almanac.httparchive.org/en/2021/third-parties
[2] https://www.w3.org/TR/accessibility-conformance-challenges/#Challenge-2
Paragraph 5.4 leads with, "Sometimes, Web pages are created that will later have additional content added to them." Are you sure you want to keep "Sometimes" in this sentence?
In addition, this AGWG note draft states, "Large websites often have complex content publishing pipelines, which may render content dynamically depending upon a large number of variables.... " [2]
[1] https://almanac.httparchive.org/en/2021/third-parties
[2] https://www.w3.org/TR/accessibility-conformance-challenges/#Challenge-2