Earlier quoted context omitted.
Don't you think that gitlab adding container registry support will encourage more people to build their own images, as opposed to trusting "black-box" images from elsewhere? Combining a base image with the deployable artifact is much more efficient than baking amis or other images. You then know exactly what your image contains and nothing more, because you built it yourself. Of course I'm looking at this from the pe…
Any nontrivial image relies on a large number of other images as a base, and just because you built it yourself doesn't mean that you didn't just download and install software with known security vulnerabilities.
You then combine that with your installable artifact (deb, rpm). It's the same exact process using classic images, so i'm not sure what the complaint about docker specifically would be.