Here's a deal for you: Wait for a new one or we can give you the broken one today.
Go ahead, it's your choice!
Allowing too many of the defective ones to get out in the wild would be a very bad move. Two different CDMA devices out in the wild with the same MEID, both trying to make use of the same cellular network at the same time could potentially have lots of very undesirable side effects, which could negatively impact not just the customer who received the defective unit, but the other customer as well.
As soon as they learned about the defect, Apple could not have responsibly kept on allowing any more of the defective units to make it into customers' hands. So, no matter how much the customers might have been inclined to complain about it, your second proposed option really wasn't an option at all.