Of course the receiver matters, that's why UPS came out with My Choice. The customer paying the shipping charges (which is the shipper for consumer shipments in most cases) knows since they agreed to the terms. Most shippers send an e-mail notification to their customers with the tracking number so the receiver can certainly track the shipment. If the receiver has My Choice, they'll also know when the scheduled delivery date is.
Not everyone wants things as fast as possible. Amazon knows this which is why they offer multiple delivery options. They even offer incentives to their customers if you choose a deferred delivery instead of 2-day delivery. Many shippers also offer a free delivery option if the customer agrees to "ground" or deferred delivery.
A.T. Kearney asked internet users in North America what the acceptable timeframe for ecommerce order shipping is, for purchases that weren’t urgent. Almost a quarter (24%) of respondents—also the largest share—said that three days was the acceptable timeframe. Some 9%, said that four days was the acceptable timeframe, and 16% of respondents said five days was.
The point of this service is that it is offered to shippers that want the option for lower rates. In exchange, THEY make the decision on which ground and Sure Post packages they are willing to delay ONE day. If the receiver wants the package faster than ground, they can select NDA, 2DA or 3DS.
Everyone wants options, shippers and receivers. UPS is simply trying to provide everyone involved with options. I can't speak for you but as a consumer but I want as many options as possible so I can select what's best for my budget and time constraints.