That's no reason to stop imagining other UI modes. I found the idea of websites feeding browsers with completions for the omnibar and accepting direct actions as REST quite interesting.
Imagine you want to follow xyz on Twitter, you could open the full page, use the search, pop the pop-up and click follow, or you could type tw tab follow xyz enter in the omnibar.
Imagine you want to follow xyz on Twitter, you could open the full page, use the search, pop the pop-up and click follow, or you could type tw tab follow xyz enter in the omnibar.