I would argue that a wedding photographer and/or videographer is in the media industry, though clearly not a part of a news crew.
The first point deals with media crews that are travelling with reporters, and I feel the second point is quote ambiguous.
The definition of "media" is very broad, and without the Government of Canada clearly defining what the definition of "media" is in the context they're using it, I feel the points listed are ultimately inconclusive: there appears to be "wiggle" room depending on the spin.
...when you are sitting in a tiny room being grilled by immigration officials there isn't "wiggle" room for spin. Spinning legal matters is really silly advice. A wedding photographer is not media. You can "argue" as much as you like that they are: but you will look very silly as you are turned around at the border and miss the wedding you were booked to shoot.