I can see where you're coming from, and your point of view is certainly not baseless, but I just thought I'd point out that at least Google has pushed for the development and adoption of linked data formats like JSON-LD [0] and standardized vocabularies like schema.org [1]. They make use of it for "knowledge graph" [2] features, as well as in Gmail for what they call "actions and highlights" [3] (things like displaying flight reservation details, for instance).

[0] https://json-ld.org/

[1] https://schema.org/

[2] https://developers.google.com/knowledge-graph/

[3] https://developers.google.com/gmail/markup/getting-started