Katseye's Gnarly just a prank? Cause what was that

I just watched Katseye's Gnarly-the MV looks really good, though a bit overwhelming. But the song? I genuinely don't know what to think. It's super short, the lyrics are kind of odd, and it left me wondering what they were going for. Did the girls even like this? I honestly don't see how anyone could enjoy listening to it. Maybe this is some kind of prank and they'll drop the real version later? Or am I just coping?