Hmmm you are right! This discussion explains that a bit https://stackoverflow.com/questions/15808330/hgroup-element-removed-from-the-html5-specification-what-al

Hmmm you are right! This discussion explains that a bit https://stackoverflow.com/questions/15808330/hgroup-element-removed-from-the-html5-specification-what-alternative-technique https://stackoverflow.com/questions/15808330/hgroup-element-... looks like it was going to be removed, but WHATWG ended up keeping it.