In the old days, only album sales were considered for the success of a promotion.
However, around 2003, album sales began to decline significantly while digital music was introduced.
So, from 2007, music award began to award albums and digitals separately.
Digitals remained as a tool to judge an act's success until recently, when the revival of albums as a necessary goods for fandoms led to the explosion of album sales , starting with EXO, then BTS, and then spreading to Seventeen, NCT, BlackPink, txt and Lim Youngwoong.
Actually the transition could have been made in 2013 when EXO had its first million seller, the first in more than 10 years.
However, in K-O-R-E-A there was a master of digitals, who significantly skewed the entire balance of KPop. SIGNIFICANTLY.
IU is almost unique in the history of world that she became a match to SNSD, EXO and BTS solely with the account on digitals in K-O-R-E-A.
Thanks to her, all acts based from Korea had to watch their backs all the time, including BTS.
Without IU, the transition to albums would have been made much earlier. It can be safely said that IU's presence was decisive for making digitals remain as a standard for an act's success. Without her, digitals would have become irrelevant, which is why Kakao treats her much more equally than everyone else.
Now, some acts released albums recently and they were weaker in digitals while selling 200k, 300k and 400k copies of albums.
That led to some K-O-R-E-A-N-S think these acts did not succeed, even though their album sales were huge.
The game has changed, and digitals in K-O-R-E-A should not be a basis for judging a promotion's success in my opinion.
The number of album sales is how we judge fandoms, how strong , how successful they are. Digitals are listened by the general public who don't care enough to shell their cash.
I think that starting next year, digitals should not be used as a standard for judging an act's success. That will end the relevance of IU and other acts who are only strong on digitals and weaker on album sales, since the latter is more relevant as the world is concerned.