Nods. Which is likely why other balanced amps, original GS-Xv2 concept included, go with 3 XLR, 1 TRS. Connector wise it costs less to use the 4, though another hole and label in the face would bring the cost back up. Wouldn't hazard a guess as to PCB cost though.
The joke is my wife knows how OCD I am about spacing that she told me to cancel my order /facepalm