I honestly have no idea what you're getting at with regards to "squandering" the title. All I can guess is that you feel the music doesn't do justice to the title which doesn't make sense to me. Both the title and lyrically it's a perfect match to trot but at the same time the song is smoother and has more swag than a standard trot song could ever dream of having. It's just really tight conceptually down to the video itself. It is really, really well done. And if you're having trouble getting into the groove of the songs than I've gotta say, sorry, that's not an issue with the songs. There is definitely a lot to like in here and I find myself bopping along just as much with the stuff in this mini.
As I said, it's basically a "musician's first world problems" for me with the album. Without going into a ridiculous spiel about groove... groove is subjective, I've got my own interpretation of it and everyone else has their own.
Remember when IGAB came out? That was a perfect example of how groove can differ between people. 90% of the people in OT4 despised it... meanwhile I was drunkenly proclaiming it to be the best thing since sliced bread. Now look at the amount of praise IGAB is getting even at the end of the year... pretty positive for what almost everyone claimed to be an utter mess.
I'm not saying that my definition of groove is better than everyone else, nor am I saying that I have a better sense of it, rather there's no right or wrong about groove. It's seriously subjective and it's cool that you're able to feel that in Mirrorball. Maybe through repeated listens I'll be able to pick it up, but of course, that'd mean I'd actually have to force myself to listen to it.
Also, regarding the title... it's kind of an unwritten rule that when you specifically use a name in a song title, it has to be seductive, especially coming from an R&B artist. But since this is supposedly trot, then I guess it won't count lol.
And for the record, I still think IGAB is great haha. Not as great as sliced bread but definitely worthy of the praise it got and is still is getting today.
EDIT: IU's new song. Daaamn. *sogood.gif*