It is sad when a protest vote against the government asking about Religion gets morphed by bureaucrats into a serious Religious category. Obviously they didn't get the message.

The Stats Canada numbers are a waste of time any way. People lie and give Socially Conventional answers. That is, answering as they were indoctrinated to respond as children. Bibbiy (U Lethbridge) noted back in 1986 that for most Canadians being Anglican, Baptist, Catholic, ...  has no significance beyond whether a particular ritual is performed when they are born, married, and buried. It is like saying they are English, French, Irish, ...   A statement about their ancestors that has no relevance to their daily lives.

Census data is published, after a delay, but with the full details including Religion, Address, name, birth date, and other personally identifying information. The pressure to give a socially conventional response goes up when the government asks and plans to tell everybody in the future.