Because it doesn't reflect on what the GP really listens to. ROM was #1 for one week and then it was like steady for a few weeks and then left the charts. Meanwhile they have been several weeks at #1
Yet another BTS bomb called "Permission To Dance" has debuted at #1 on the Hot 100 despite being nowhere to be found on streaming or airplay charts, just like Butter They have now spent the last 2.5
Well, you really are though.