Your observation, while accurate, has been discussed for quite a while now, and what "thoughts" come to mind at this point in my life is, "yeah, whatever."
Not dissing your post, but since you asked for my thoughts, then here goes...
I really don't give a rat's ass what Digidesign is up to. Now that every sequencer company has been bought out by someone else, it's rather difficult to feel any sense of loyalty toward one company. At the end of the day, we just want to make music. I can't wait for the day I can just have fun writing music, and selling it, and knowing I connected - emotionally - with some listener out in friggin' Uzbekistan because he really identifies with something I created. That's the day when the obvious gets state and we see the light. The music which reaches people on a purely artistic leven and the machine used to create it are two completely different entities. One really matters, while the other one doesn't.
That said, to give you a less introspective and more upfront answer...
If Digidesign drop Mac support then I drop Digidesign, simple as that.
There are other fish in that sea, and I ain't going back to Windows....