My apologies if you felt i misquoted you, i didn't intend that.
I do plenty of SaaS deployments at $DAYJOB, and i can easily pack hundreds to thousands // running containers on a single machine.
Remember that Fedora is on the innovative side of the distro spectrum, yes vhost is the present, but containers is the *future*.
Even the enterprise distro are betting their chips on containers (SLES and Ubuntu have LXC commercial support, RHEL/Docker partnership, etc.)