So exTine's latest spectator HUD now shows the total health of the team in real time; I found this cast of this week's UGC plat game on Upward mesmerising to watch as the bars moved around. Now I'd reccomend watching competitive Higlander anyway to understand the team dynamic, but I also feel this feature could help us understand how gameplay matches up to team health.
https://www.youtube.com/watch?v=AY7c_0dcl5E
https://www.youtube.com/watch?v=AY7c_0dcl5E