The Open Data tools do not allow you to submit results if you are on OS X…
due to this bug reported in August 2018 (no SSL library is shipped with it).
https://developer.blender.org/T56329
And now, latest Blender 2.8 cannot detect the Video Card and GPU acceleration is disabled (I think earlier 2.8 versions did on my system). While Apple have stated they are stopping improving OpenGL, they still support a version of OpenGL and OpenCL which is above the one needed to run Blender 2.8.
So is blender 2.8 on Mac dead?