I haven’t used GRASS in years. QGIS is my tool now, and where I work.
So, I won’t be packaging GRASS any more, starting with GRASS 7. Check the GRASS website for other sources of Mac packages, Michael Barton will be doing the standard Mac packages.
I may package 6.4.5 when it is released.
I will still bundle GRASS in QGIS for use by QGIS.