While Twin Arrows is nice, you’d definitely need Barrage’s burst and AOE capabilities.
Feinted Barrage technically have a 25s cooldown due to Feint’s cooldown while we could say that Twin Arrows has an average of 11s cooldown due to the casting animation and you need to burn all charges before it triggers the cooldown.
Feint + Barrage = 120%+300 damage per sec
Twin Arrows = 91%+290 damage per sec
For additional benefits, you get 5 more levels for Multi-Shot from Archer C3 but you can get Lv5 Steady Aim buff from Ranger C1 so that balances it off.
Personally, I prefer Barrage’s AOE + burst capabilities for situations that needs it.