> You are not "locked in" by Docker Inc if you are using Docker just like you aren't locked in by Github if you are using git.
A much more accurate analogy would be you are not "locked in" by Oracle if you are using MySQL. It may be true today, but no guarantee that will always be the case.
Despite the attempt of some to move goal posts, you're still guaranteed that you won't be locked in by Oracle even tomorrow. You still have the source code for the version you're running right?
If people think the software moves in the wrong direction it will be forked (see MariaDB). Nothing world changing will happen.
Docker Inc. seems to make a lot of effort to ensure Docker is a truely open project. I get the feeling that people think that handing your project to Apache is the only way to prevent vendor lock in these days.
A much more accurate analogy would be you are not "locked in" by Oracle if you are using MySQL. It may be true today, but no guarantee that will always be the case.