I would add to your remark that the very fact that OpenGL ES ever took off was because of Apple.
Before iOS, most mobile devices were having their own experiments with 3D APIs, Nokia N95 was the very first with OpenGL ES compatibile GPU, but it was thanks to iOS games that it ever took off.
Apple was also pursuing Quickdraw 3D before the NeXT acquisition, so not too keen on OpenGL anyway.
Their OpenGL's adoption was mostly survival related, now they are back on top, they can afford to dictate their 3D APIs just like all other console vendors.
Before iOS, most mobile devices were having their own experiments with 3D APIs, Nokia N95 was the very first with OpenGL ES compatibile GPU, but it was thanks to iOS games that it ever took off.
Apple was also pursuing Quickdraw 3D before the NeXT acquisition, so not too keen on OpenGL anyway.
Their OpenGL's adoption was mostly survival related, now they are back on top, they can afford to dictate their 3D APIs just like all other console vendors.