From: Greg KH <redacted>
Date: Mon, 23 Jun 2014 12:29:11 -0400

Given that this change will fail on all future distro releases, and
almost all of the community distros today, I don't see how this is
acceptable at all.  Nor would it be any better if you switch to a
systemd command line script as well.  You should just work like any
other network device works in this situation when it comes to
enabling/disabling the device.  Worse case, just tear down the whole
network device at suspend time, and recreate it at resume.

Agreed, and I've strongly asked them to remove this code immediately.