From May 6, 2020, to May 15, 2020, BTS completely controlled KPop, as the last remaining opponent, a Lee Jieun, had submitted to it.
However, on May 15, she released this version, cutting Suga's part and essentially rebelling against BTS.
This rebellion eventually led to BTS being dragged to the military and losing the world empire.
However, it was totally preventable.
It seems by 2019 even the most determined foe of KPop, the singer who spent the most time undermining KPop's advance to the world felt pressure and felt a need to reach an accommodation with BTS.
In an episode of Suchwita, IU had said that she sent an offer to collaborate with RM but the latter never responded.
If he accepted, it is likely that he would have given an artsy, not too popular, a 'manianical' song typical for his own releases, which would have been critically acclaimed and quickly buried, like some other collabos she had done.
However, RM refused the collabo, and Suga took the offer, despite of him almost bringing her around by a song he gave to Suran, a singer who has not been heard of since then, to bury IU after the latter was humiliated by Laboum.
Suga took the offer because he wanted a new producer at Big Hit (at that time), El Capitxn, who was the same age as him, something to do because the latter had become his friend.
The problem is, El Capitxn was previously known as Jang Yijeong, in a little known group named History, and primarily known for singing a line in a song called "Friday", by ..... IU.
That led him to be able to speak the #1 comments, in front of two EXO members, Xiumin and Sehun. It was the highest point of El Capitxn's life.
So El Capitxn, who probably did most of the actual work, was significantly more friendly with IU than whoever RM would have worked with to produced the song.
Eight was released, and it became a greater hit that expected, and IU felt confident enough to rebel against BTS, which led to a lot of unfortunate incidents I won't repeat here.
If RM had worked IU and released a well-received but not that popular song, which would have been quickly buried in the charts, that would have established BTS' supremacy over IU who would not have been confident enough to go against it.
Instead, Eight led IU to be the primary competition of BTS.
Without Dynamite, probably its most popular song of ever, Eight would have become the #1 song of 2020, and IU's supremacy over BTS would have been established, preventing its world conquest the next year.
RM , by refusing a collabo with IU, lost a huge chance to bury BTS' most determined and stubborn foe once for all, and instead made her strong enough to challenge BTS, an idea which was not lost by Taylor Swift and Morgan Wallen.
