Which actually stable distribution includes a sufficiently new kernel? For important stuff, a lot of us stick to Debian stable, Ubuntu LTS releases, CentOS/RHEL, etc.
Read: Even if Ubuntu 16-LTS and Centos/RHEL 7 may be up to date enough now (not sure), they won't keep up with the latest minor kernel updates and that will become a problem in 6 months when docker 1.1X will require THE newest kernel.
After all, about 1/2 the gripes stemmed from the fact they docker itself is basically the engineering branch minus any serious regression/etc testing. Of course things are going to break from release to release, that is why test departments exist.