Such high number of ULs was never achieved since 2019 on Melon and there was no indication so many girl groups would be reaching such high peaks now like 630k ULs like IVE.
Did Blackpink's cb announcement give all these other groups boost because of the competition? No one would be motivated to stream so much and compete it it wasn't for BP's success with Pink Venom where everyone tuned in for them and only after other songs started gaining ULs too because people were curious for these other songs after checking out Blackpink.