With the echo, Turn 5 only has three difficult parts.

Conflags. Echo makes killing them easy but people still need to pay attention and do the pet soak right.
Divebombs. Everybody needs to stack in the right spot and move at the right time.
Twisters. Everybody needs to be good at dodging them. Even with echo, 1 dps down is all it takes for dreads to start their killing spree.

Everything else echo trivializes