I installed Armory with Red Emerald's instructions, using terminal - would you recommend switching to the new .app? And uninstalling previous version?
If you do use the .app, you don't have to worry about uninstalling the old one. Everything that's needed is contained within the .app.
I know you should "never say never", so to speak, but the .app is the exact same thing as what was used before, just self-contained. I tested the basic features myself, making transfers, creating wallets, etc. Of course you should take that with a grain of salt, but that's what I have to say...