The catapult-shoulder charge is op. I love it. The speed from catapult allows you to trigger shoulder charge right after so you can spam the jump button twice then melee to go flying across the map. It also works as a really good thruster if getting shot at or to charge someone.
But you can do that with the exact same speed with directional control...I've timed it myself and you can reach the shoulder charge activation time with both catapult and directional control in 3.5 seconds...