This page looks seriously out of date now, as a result its criticisms are inaccurate in a wide range of areas. To pick one in particular, Security. the claim

This page looks seriously out of date now, as a result its criticisms are inaccurate in a wide range of areas. To pick one in particular, Security. the claim that Docker doesn't know anything about AppArmor and/or SELinux just isn't correct. and the other security claim about having to trust docker hub is also now not correct, you can use signed builds to avoid that concern.