The song they chose was not people were expecting and it wasn't catchy. Fans wanted the other song to be promoted but I guess it was fitting for the hiatus. BTS last comeback debuted at #1 in melon but it didn't have the longevity that their usual upbeat song has. BTS always depends on the songs if will do well. People thought they were over when they released Black Swan and On then Dynamite happened.
The take two song didn't do anything either tho