Personally? I would have expected a "known issues" list, something saying, "Yes, we know it's a problem, however we currently have more important things to deal with", or if there is no intention of fixing it, perhaps, "This is because the video driver doesn't support a 256 colour mode. We feel that 256 colour modes are passe, and won't be supporting them anymore."
Either would be fine. Black hole silence? Not impressive.
What was impressive was that 3 of my mac-owning friends took it as a personal insult that it didn't work and spent an hour trying.
Mac Owners? Thumbs up.
Apple Support? So far, thumbs down.