Outbound connection is for the remote control software. It was added so that remote controls can work where even NAT traversal is normally difficult/impossible, like carrier class internet ala… a cellular hotspot, etc… or if you just don't have any control over port forwarding behind NAT.
https://en.wikipedia.org/wiki/NAT_traversal
This will try (every 10 seconds) to connect to a remote control that is setup in listening mode on a specific port number. This does mean that the remote control that's listening does have to have that port forwarded to it, if there is NAT.