My point was that Docker purports to solve the sandboxing and security problems.

In reality, this is something that 90% of people who use Docker don't give a shit about. For the vast majority Docker is just a nice and easy-to-use packaging format.

The sad part is that

a) Docker failed at security.

b) In trying to solve the security problem Docker ended up with a pretty crufty (from a technical point of view) packaging format.

Maybe we need to start from scratch, listen to the devs this time and build something they actually want.

Says who? The article I linked to you says nothing about security.

>Docker failed at security.

If somebody thinks security is the strong feature of Docker he/she is misinformed.

>For the vast majority Docker is just a nice and easy-to-use packaging format

For the vast majority of who? Developers? Sys admins? PMs?

The big advantage of docker is the self-contained environment for CI builds.