I've noticed there's a way around paying the revive costs for resurrection when in a group: leave the group and then rejoin.
You effectively rez for 10 energy every time, but lose your heat, and don't always have full health.
That's... really all there is to it. It's clearly circumventing the system put in place, so I really hope this gets addressed.
Er what? That's never worked for me. If I leave the group for any reason, I come back and I'm pretty sure the costs are still where I left them.