Even though Tiberius has a projectile weapon along with Evie, it's easier for him to hit shots on Evie than it is for Evie to hit shots on him. During combat trance, it's hard to miss a shot, and he bursts Evie down.
Barik has too many defenses against Atlas. His shield stops Deja Vu, or he can Rocket Boots to escape the rewind. He can also set a turret on the other side of your field, and rocket boots back behind his shield.