Singapore and Taiwan are basically cities, very dense. China is a Communist country with all kinds of totalitarian policies. South Korean cases are still climbing at more than 100 a day. You can't tell precisely what the growth curve has been because there's going to be a higher bias when they ramp up testing in many countries.
At any rate, no, a town that has 50 people per square mile should not be forced to respond in the same way as some city with 50,000 people per square mile. In the meantime, the people of Fargo have all the relevant information and their local officials can make calls as needed to suit their demands.
The rule "no gatherings over 250 people" isn't a blanket rule. It will impact cities more than rural places. The flexibility is already built into the schema.
At any rate, no, a town that has 50 people per square mile should not be forced to respond in the same way as some city with 50,000 people per square mile. In the meantime, the people of Fargo have all the relevant information and their local officials can make calls as needed to suit their demands.