This is another "Docker style" feature.
It will take time to sell, but once sold there is no turning back. When they mentioned Navicat in the "Countdown to 3.0" post I knew they were missing the real benefits of what you were trying to implement.
Brad still doesn't know that he wants it 
Some people say, "Give the customers what they want." But that's not my approach. Our job is to figure out what they're going to want before they do. I think Henry Ford once said, "If I'd asked customers what they wanted, they would have told me, 'A faster horse!'" People don't know what they want until you show it to them. That's why I never rely on market research. Our task is to read things that are not yet on the page.
-Steve Jobs