...Or they could just allow the game to always output to whatever the current default output device is, like other games/programs. FFXIV has been the only program I use that effectively locks on to a given audio device and refuses to change. Which...is kinda annoying, I guess. I used to switch between a wireless headset and more comfortable headphones when the battery would have to charge/I didn't need the mic. But to do so would require restarting the program, which was a pain.

A stop-gap (unless you need 5.1 audio or something) is to just get a virtual input/out device program and use that to map to different devices. Voicemeeter does a pretty good job (can't make it past 2.0 audio for me though).