That's like saying because everyone else has 'pervasive multithreading', BeOS won even when it was a commercial failure. Everyone else did it better. It's not about who invented it first, its about innovating over other inventions. Symbian still failed commercially in the market and couldn't compete or innovate with the other competitors.
Yes, that's exactly what I'm saying. In the marketplace of ideas, both Symbian and BeOS eventually won the argument. They didn't win commercially.
I realize this is a philosophical distinction, but it really does come down to whether you are attached to the fundamental characteristic of a thing, or the label/name/brand of the thing.
Financially, the brand matters. If Uber fails commercially, but ushers in an age of gig economy transportation, the idea won but the brand did not. As an investor or employee, you care deeply about the brand.
But as someone trying to change the world, you care deeply about the idea coming to pass by any means necessary. Sutherland did not get rich. But do we say he lost because “The Mother of All Demos” was not an Apple II or Macintosh?