Wireless Current Meter Fail

This device wirelessly sends the current from up to 3 clamp meters to a receiver. I got this from a mate with other some other stuff and I’m not sure where or what the receiver is but i will use the clamp meter some where.
i took it apart to find the board inside (as expected) but while looking at the antenna, I saw it was a wire and that it was not using the plastic antenna. What were they thinking, was it to make sure that the user could see that it had an antenna or did the manufacturer just did not get the memo about putting the antenna wire into the antenna plastic thing. It was funny to see but such a very pointless.