I mean, to some degree that's true, but that's not anything the W3C can do anything about. It's just the nature of the browser market at this time. As an examp

I mean, to some degree that's true, but that's not anything the W3C can do anything about. It's just the nature of the browser market at this time. As an example, C++, also an ISO standard, has notoriously few full implementations, and as a result C++ is largely defined by "what GCC/Clang accept" in practice.