[wongarsu]

That's how html should have been designed from the start. HTML is originally designed as a very flat hierarchy, e.g. h1 p p p h2 p p h2 p p h3 p h2 p just following each other. When really it would make much more sense to have h{p p p h{p p} h{p p h{p}} h{p}}.

[yiiii]

That's what sectioning elements [1] like <section> and <article> where once introduced.Opposite to just using <div> elements their purpose was to create a real document outline, where it would have been possible to only use <h1> and their level would be determined by how deep the section is nested, but this approach was never really adapted.

[1] https://www.w3schools.com/html/html5_semantic_elements.asp