That isn’t the issue. Debian experimental already has 4.4.0, but it won’t make it into Debian unstable and thus Ubuntu for a while. The issue is how frequently Debian and Ubuntu release.
How is that an issue? If you want to live on the bleeding edge, you can run experimental or unstable or whatever. Or just pull the package you want. The poster asked how to "encourage" the distros to ship the package they wanted, and now they know.