What if they reworked it so everyone had personal LBs (like PVP only a bit more balanced for PVE) and then using them at the same time would trigger a bonus effect like the current group ones?

Imagine the arguments.

The current system is a bit silly; I seem to spend most of my time in dungeons as a healer begging the people who get to press the button to remember it exists. I wouldn't really want personal and group ones to be separate though; that's a whole extra button for no real reason. I don't actually know what the healer LB3 looks like as every time I have used it I've been so desperately stressed out I haven't been able to watch it properly.