Why fit a usb on my ebike battery when not even connected

Id like to ask if anyone else has a viking gravity ebike with a internal frame battery pack which has a usb port included. Thing is i found out that it wasn’t working even though its a brand new bicycle., So i investigated and uncovered it wasnt wired up at all in side the battery pack there wasn’t.any adapter /wires even available for this feature to get connected up.Is this a flaw on my bike or has anyone else noticed this problem???
As why go through the process to fit something that is not going to be connected up to work? I’d like to see /hear any views as surely this is a massive waste of money on the manufacturers behalf and also annoying to the customers.