The issue is for routing. This intersection is easy to cross late at night or on weekends when traffic is low and it is always legal. The fact that it would be impracticable on rush hour should be specified in other tools, outside of OSM. Removing these kind of crossings would break routing all over Quebec since it would not allow pedestrian to cross in most villages and towns or in rural area too. I would suggest to keep them active and use another tool to specify if it is dangerous or difficult to use during some periods of the day. I understand that the wiki is saying that there should be a kerb or something to specify it is a valid crossing, though unmarked, but in that case, it would make pedestrian routing completely unrealistic. Some municipalities in Quebec have long stretches of roads without any kerb but with sidewalks on both sides and multiple unmarked intersections. Removing the unmarked crossings would make routing unusable for pedestrians.