No, I'm actually quite pro-AMD, that's just fact. Their propietary drivers have had some of the shittiest OpenGL support known to man (like a 30-60FPS difference behind NVIDIA on similar hardware) prior to recent times, when AMD finally patched it up to close-to-acceptable levels. The old mindset of DirectX working with "everything" has stuck however, and developers still avoid OpenGL like the plague as a result. There's even news articles proving this.
I don't think AMD's performance was the reason for OpenGLs abandonment. You have a Windows ecosystem in PCs, so you go with Microsoft's DirectX. If everyone was using Linux, OpenGL would have been the primary API, even if Microsoft had created a Linux version of DirectX. Even if Vulkan ends up great, games will still use DirectX 12 on Windows.
Also have a look at what is happening today. It is a different period with different parameters of course, but games do use proprietary techs from Nvidia that make AMD cards look like sh!t, in some cases even older Nvidia cards. So, the game creators doesn't really care that much about performance. Not to mention that for years games where developed on Intel+Nvidia hardware, that's why AMD's drivers where needing a few new versions and patches until most problems get fixed.