Except that is exactly what happens on ARM, for example.
Re:A smaller, cheaper RISC V board
by microcolonel on Wednesday September 20, 2017 @03:58PM
(#15297637)
What proprietary ARM extension are you just dying to have?
Personally I don't care about RISC V's future, was just making the point things might not turn out as the comunity hopes for.
To reply to your question, as a developer I don't care about ARM vendor specific features, because Android hides them for me.
However as a consumer, they do impact updates.
Useful ISA extensions are likely to remain royalty free at least, if not standardized at the level of the foundation; but if they don't, it's not the end of the world.