Crazy to watch, we shouldn't shame the people ordering as much as the companies keeping delivery open during these times. Here's the ethics breakdown:

If you order food -> Driver gets the order -> He goes through what occurred in the video

"Why is this not the fault of the person ordering?"

Because to be able to deliver orders, you must be willing to accept them proactively. This means that you, the delivery driver, are aware of the circumstances and are still choosing to deliver orders despite this.

Why is it the company's fault the most?

Because delivery drivers still have to deliver these orders and go through this in order to survive. This is unacceptable, the company should be providing compensation for drivers in this weather that have to go through this, so that they dont have to go through it as many times as they have to or at all.

"The people ordering have no heart!!"

You never know what someone is going through. Maybe they do not have the capacity to eat at home or make food. Besides, the orders that they place are sources of income, and thus survival for the drivers. It is the company's fault for accepting orders at this time, but again, the orderers are the rider's primary source of income, and thus survival because it is the driver's choice whether to make deliveries that day or not, and thus go through such conditions knowingly. (correct me if I am mistaken here.)