You can switch directories via the command line or via Automator binaries that make the CL calls.
I think that'll work, although it looks like Armory is having problems finding the link. I'm assuming there's a symbolic link to the Bitcoin Core data at /Users/XXX/Library/Application Support/Bitcoin? Can you enter the Core directory directly by going to that directory from the command line?
https://drive.google.com/file/d/0B2MXC1kJFm0SalNMQi0yN3NyQVk/view?usp=sharing
That warning can be ignored. I'm more concerned by the thing I mentioned above. That and the failure to discern the HW you have, although having a Hackintosh means fixing it may not be possible.