CAD vendors were what fucked over OpenGL for a long time, and it was only the fourth-quarter ill-fated kick by 3dlabs that gave it a programmable shader pipeline, and in turn set back the API development by another half-decade at least.
Look, "open" is not some magical fucking pixie dust you sprinkle over an abortion of an API to make it breathe life and grow up and change the world. If it was, audio in Linux wouldn't be such a shitshow, and neither would X, and neither would any number of other open APIs that everyone hates.
I do agree with you, though: rest in peace, Silicon Graphics.
EDIT: Derp on 3dfx vs 3dlabs.