Thats a rather immature view of the technology world that smacks of the tired old tribal warfare notions that only internet forums believe in.
Apple had a technical problem of slow, bloated and battery-draining OpenGL API and they solved it using Metal more than 18 months ago, when no other viable alternative was on the horizon. Are they jerks because they didn't saddle their users with a technically inferior solution for even longer?
Khronos has let OpenGL evolve into a byzantine beast of an API with GPU vendors effectively segmenting it into multiple complicated variants of best practices (like AZDO and others). Vulkan was announced more than two years ago, but unless you were in a select inner circle of developers, there was no actionable information available, until today.
In the meantime, major commercial engines already have official support for Metal (or Unity will have it soon). Popular games like World of Warcraft already have betas using Metal. I can download free IDE, documentation, sample profiling and debugging tools for developing Metal applications.
Sad truth is that Kronos and the Vulkan group took too long to evolve OpenGL and to give developers any actionable specifications for Vulkan.