The fury (plus all those extra turn characters) is not only an issue of PVP.
It could also have a serious impact on PVM once Silent Planet comes around...
I have built a team for BNW&LoL (since it requires 4 characters), which gets an “endless extra turn” making the dragon king just a stationary punching bag.
that is imo a cardinal sin in any rpg!
So, theoretically, you could whizz through 100 lvls of SP not even having to care what your enemies are with this team...