"retailers...view CurrentC has a key effort to escape from credit card swipe fees"
Here's the thing. I'm probably never going to use CurrentC. It sounds clunky and slow. That means that I'm going to continue to use my credit card, and these retailers are going to continue to pay the swipe fees. So from that perspective, CurrentC is basically a dead end.
I feel stupid for admitting this, but I had not thought about it this way until you said it. I've thought of it as an Apple Pay vs CurrentC kind of battle, not a battle that can be won by using neither. Their goal with using CurrentC is to get rid of the swipe fee's. So if you can't use Apple Pay, you just use your CC anyway.