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Some basic info about USB
(lemmy.world)
This is a most excellent place for technology news and articles.
People do not want to be limited to 1m long cords or only have thick and stiff Thunderbolt3 cords with 20 different conductors for a wired mouse.
Minimum specs like you are proposing just make the standard less useful and would lead to more competing specs that aren't compatible at all (a la lightning cables).
To be a truly "universal" spec, flexibility is king.