These timed services to date haven't hit significant volumes for any carrier from feedback I've rec'd. Customers have to know or even care about it. To me it's a lot of effort, a lot of worries for something that hasn't been a hit for either carrier yet. Maybe these are services they think they may need in the future if things like Same Day from WalMart/Amazon etc really take off, I dunno. Marketing has a job, these people have to do something, this is what they dream up. It makes some sense that there would be a need and all of that, but it's a sloooow burn.
To be honest, there could be less shipping options and not more, the consumer can adjust, for example "I'm looking at you COD". They are a pain and if you can't pay two days earlier on a CC, why can you really on COD? And time and time again, same people. Why pay an extra ~10 dollars in two days vs save that fee just using a CC? Cod was good in the 70's and 80's when there was no good way to pay company to company online. Another, there could be less package scans at your .coms, because more scans can cause more concerns to a recipient who stares to long. Package Picked up. Package In Route. Package on it's way to Final Delivery. Package Delivered. There is your data. But no, with all these city names on intermediary movements and if something looks odd... Customer service call. Does no one no good.