This is a decision about which students should be streamed into which system - the secular public system or the Roman Catholic public system.  Putting aside the question of religious-based schools for the moment this decision could have far-reaching economic implications because the existing system has been built to accommodate both groups.  Shifting all non-Catholics from the RC system could require significant new investments in the secular system.  Thus, the government may decide to appeal because the cost of a legal appeal would be far less than the cost of new investments in the secular system.