Yes, Mr. Speaker. The agreement says that governments must respect the Canadian Constitution.
The courts have recognized that federal spending authority is legal, regardless of what the professor may think. It is legal, and has been recognized by the courts. In fact, this authority exists in all modern federations, but it has fewer conditions attached and is used the least in Canada.
The agreement requires the Canadian government to meet additional conditions before invoking the federal spending authority. I fail to see how anyone can claim that this agreement is a centralizing measure.