In its section dealing with Catholic schools, the Church's Code of Canon Law states: “Associations and meetings of parents are to be set up and held in high esteem" (No. 796, Section 2).
There certainly can be differences of opinion over just what holding groups of parents “in high esteem” means in practice. At the minimum, however, it must mean giving parent groups some kind of a voice whenever major decisions are being contemplated. Otherwise, it is just an empty platitude.
DOR has ignored parents who recognized the impending crisis in our Catholic schools and approached them with offers of help (Noelle D'Amico, Mike McDougall, et al.). Furthermore, it deliberately denied parents any active role in its decision-making process and did not even make an attempt to get their input.
If this behavior does not constitute a violation of Canon Law, then that law is not worth the paper on which it is written.