Of course it did. It was based on Human and Equality rights.
In my mind to go down that route was about as stupid as things get. A misuse of poor legislation via a blanket approach was never going to work.
Having a spare bedroom is not a human or equality right no matter who you are. Having one for practical reasons when you are disabled, such a carer staying over, could be. The appeal should have been based on the one-size-fits-all aspect of the legislation and should have argued for the need to assess each application on the requirements of each individual. Had that happened there might have been a chance of success.
The danger now is that the door has been firmly closed on the issue to the detriment of many disabled people.