You missed this:
Aug 1 - Dec 31:
It is illegal to.... use more than one single-pointed hook in the tidal waters of the Seymour River from the BCR Railway bridge downstream to the fishing boundary signs located on the west and east shore of the river.
It is illegal to.... use more than two single-pointed hooks in tandem in Burrard Inlet near the mouth of the Capilano River to Prospect Light on the seawall of Stanley Park to the North tower of the Lions Gate Bridge.
No, I didn't. In the synopsis that regulation alternatively reads "Two single barbless hooks in tandem, each no greater than 15 mm from point to shank may be used in Burrard Inlet near the mouth of the Capilano River from the 14 St. Pier to Prospect Light to the north tower of Lions Gate
Bridge"
1) That regulation does not preclude barbless treble hooks. If it did, the regulation would need to include the words "only", or other words to that effect. You can still use one single barbless hook, or a barbless treble hook, you just can't use more than 2 single barbless in tandem.
2) Only applies to a small piece of water in front of the Cap, not the entrie W.Van area.