I was not here for the presentations of the people from Transport Canada. So I'm not sure which provisions they discussed.
If the reference was to the discontinuance provisions in the legislation, those provisions require the railway company to go through a fairly lengthy process to end the operation of or to transfer a railway line.
My understanding with respect to the provision you've spoken about is that removing an interchange from a line is covered by a separate process, the provision to which you referred, but that's different from ending service on a line.