Yup, I also cringe when I hear that. Actually I had a friend who worked for cps many years ago, and I know that she's a good person with a good heart...unsurprisingly she did not last long in that position.
I read the facebook message on this post, and I had to concede that yes, there is probably a small percentage of cases in which it works out better for the child. But those are rare and very severe cases in which the lives of the child truly couldn't get any worse and they were lucky enough to be placed with one of those also rare families that foster because they care about the welfare of children and not the monthly check. But those rarities don't even come close to the amount of damage I've seen firsthand that cps has caused.