Having these concepts exposed to the web doesn't repeal the necessary of standardization, i.e. both web developers and AT vendors has to stay in agreement on co

Having these concepts exposed to the web doesn't repeal the necessary of standardization, i.e. both web developers and AT vendors has to stay in agreement on content semantics they operate with, but it will make the agreement process simpler than it's now, because it doesn't require implementation from browsers for each and every new feature. Also it will enable experimenting on the web, where web developers and AT vendors can try new things before stuffing them into standards, which should boost the accessible web.