Isn't that the real problem here? Nobody cares if your browser fails to render that page, because you strictly adhere to the standard while Chrome just happily

Isn't that the real problem here? Nobody cares if your browser fails to render that page, because you strictly adhere to the standard while Chrome just happily deals with broken documents (or worse: Chrome requiring documents to be slightly broken). Chrome is the sole benchmark. If it works in Chrome, it's fine, if it doesn't the site is broken. Standards never enter the discussion.