Mark,
Thanks for posting the correct link as I was also looking at your nice "printer manages color" piece and copied the wrong link. I remember the flail and being concerned it had impacted the Windows version - but it had not. That, and the changes Apple made resulting in removal of the no-color-management print option forcing the null transform trick which only works on Windows AFAIK. One would think that sort of thing would be better controlled. Especially since Apple has such a dominant position in the design arts / photography world.
Hi Doug, ACPU works well for printing profiling targets using OSX, especially for Epson printers; less clear for the Canon Pro printers, where Canon Print Studio Pro provides a reliable option.
There was clearly a slip-up back in June/July 2016 - I suppose can happen in any software company. It's been pretty smooth sailing on the whole since then. That issue was an Adobe problem, not Apple. As for Apple - not so dominant in the graphic arts/photography world. Some years ago an audience poll I saw at Photoshop World indicated roughly 50/50. A long time ago this was an Apple preserve, but that got heavily diluted over the years as Microsoft really improved dramatically in these areas.