Over a decade ago, web framework and web site generation tooling had already ruined any kind of automated anything, as the frameworks and tools started using what amount to GUIDs for identifiers. I suppose the charitable take on why is as only machines needed to read it, and css styles and div IDs had become token gibberish anyway, so semantics were irrelevant.

Whether selecting for ads or content, one had to figure different ways of getting after it, whitelisting was already off the table.

We'd found "structure" could work, but had to be fuzzy and adaptive as marketing shuffles pages around constantly, not just on the whole, but for A/B runs and personalized "experiences".

So that seems back to, hey, models could help.

(Though none of them, to date, attain as high success as latest hand coded "reader" tools, worth inspecting for how this could be generalized.)