So pump, did your whole brigade make this decision, or was it made for the brigade?
You may have a very different culture, but every other brigade that I know of, if the members were told that they would not be sent on strike teams / task forces / deployments, well, there wouldn't be a brigade left.
As for no back up, I am sure you must be talking more in a political/administration sense, rather than practical on the ground back up.
As Shiner said, one opinion does not fit all. But some of my best CFS experiences have been on deployments, so I am a bit sad for your brigade that you don't get to experience that.