Yeah, it's just like everything else in this movie ... it doesn't have to make any sense, it just has to look cool and fresh and funky ...
You mean, just like anything else in the franchise from the Planetkiller to V'Ger that made it to the screen first and foremost because it was visually appealing and in the context of its time was "cool".
Don't kid yourself, cause it "looks cool" has always been the first and foremost reason any F/X or spaceship made it to the screen. That's okay because its all made up anyway.
And actually the film made pretty clear sense.
Sharr