I guess I could soften it to being the responsibility of the city, as well as design guide producers/regulators/the province, and the engineering profession responsible for the same. It is not really the fault of the victims, or even of the users of the infra, if injury and death results from predictable use of that infrastructure.
It's intentionally a bit provocative. We need to treat unsafe infrastructure and the resulting deaths and injuries as the fault of the people who are responsible for designing, building and maintaining that infrastructure. That is the attitude that will result in improvements to infrastructure rather than treating predictable outcomes as 'accidents'.
In this case, the city allows contractors to get away with putting bins in cycling lanes, otherwise it would not have occurred.