The real problem here is that bike gutters are not bike infrastructure. They are car infrastructure. They are an ineffective and dangerous approach to separating bikes from cars and are only used when the city doesn't want to be bothered to do something better. As the other user said, the shoulder of the road is often the only place for delivery trucks to do their jobs. The city was lying when they painted a bicycle lane on the shoulder and gave you the impression it's exclusively for bikes. They fully expected the shoulder would still be used for other things.