I would also say the depopulation of the ride is also a major flaw. In Splash, between the scenes of the Br’er Rabbit storyline, there was a population of characters from the fishing geese/storks, the occasional splashing fish jumping from the water, singing frogs, turtles riding on geysers, beehives, a possum family hanging from the branches above you, etc.
It was all very kinetic; even the static props had some form of motion associated with them, such as the static fishing gator that featured an animatronic Brer Frog sitting on his back.
All TBA has is scenery plus fireflies…which aren’t even the cool PotC fireflies, but cartoon projections.