I suppose what I’m hoping for (perhaps unrealistically) is an opinionated norm that establishes a convention.
The standard refers to…
from the query or fragment component of a URI
…but the average web user just wants to know “that thing I learned I can do on YouTube I can also do on Facebook, and the BBC”, etc.
It doesn’t serve the average user to have to know the specific way each publisher does things, which publishers are often not very good at communicating anyway.
Wouldn’t a convention be a good thing?