It would have made a better impression and been more fitting to the event
As their debut song, Monochrome is more grand in scale, less generic, and just more impressive than Attitude. When I first heard the song I thought "How did they go from this to Attitude?" Imagine hundred-thousands of random people watching the MMA who never heard any of ATBO's songs, Monochrome just is a way better first impression than Attitude.
Sound wise, Monochrome is also more exciting and appropriate for an end of year ceremony or any live event. Of course they made Attitude hype with theatrics, props, intro & dance break, and backup dancers, but I think this effort would have been better used on Monochrome
Them performing Attitude is like if Kep1er were to attend and perform We Fresh (generic newest song) instead of Wa Da Da (the song that actually defines them and shows them in a better way)
I think they knew all this and knew Monochrome is better so they made it the final minute as the highlight. But I would prefer if they just did that song for the whole time. IK there is a standard of spectacle at these multi-artist concerts but they could have just done an Intro + Dance Break for Monochrome instead of Intro + Attitude + Dance Break + Monochrome. Anyway I don't care that they mixed 2 songs but I just think they should have done Monochrome instead of Attitude
(live Monochrome at festival, they did it for KCON Japan 2022 as well but there is no upload of it)
((Background: ATBO is a group under IST entertainment, a Kakao group, they were basically at MMA as a segment from the sponsors, just like Girls Re:verse))