Aquaman doesnt win ANY mu because of Trident Rush....
Trident Rush - 15% chip on block + 65% of meter re-gained.
FTD - Safe from range vs 99% of the cast, full screen, tracking, anti-zoning, anti-airing, launcher.
Which of these 2 moves sounds more "broke"?
Aquaman would not lose any additional mu's if Trident Rush was adjusted to do less chip. Some of his winning mu's may become even, but not losing. Without FTD Aquaman would now lose to Zod, Sinestro, Cyborg, Green lantern, Zatana, Bane, Grundy, Harley, Nightwing, Killer Frost.
Trident Rush is the best close out move in the game. If your opponent has 30% life left and you have 1.5 bars of meter, you can end the life bar without actually landing a hit. It is one of the best moves in the game. However, Trident Rush is possible vs powerful zoning/keep out characters because they cant sit full screen and play keep away all game due to FTD. Try fighting Cyborg WITHOUT using FTD and see how many Trident Rushes you get off.
In short, I use Trident Rush a lot currently. It is one of the best moves in the game. However, dont mistake one of the best moves in the game (Trident Rush) for a bullshit move, FTD has that area covered.