I believe this is a collective failure. First, developers praise the web/html/css ways to do things and want nothing more. Then they meet a complex layout problem (page-scrolling of an element which is partially covered) and find no solution, because they got what they wanted and nothing more. Nobody reports it as a bug or a FR, or it gets scrutinized as “Do we really need it? Here is a complex way to do that, incompatible with most designs, but doable, right?” and then gets closed as inactive, cause nothing adequate can be commented upon it. Developers develop selective blindness to very obvious layout bugs. The cycle repeats.

So many hours spent on nothing when a simple `viewport-offset-{top,…}: 20px` could solve it once and for all. Instead we will support global nonsense described in the article for years, despite it stays nonsense at any angle.