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