oh lord. Will this end well.
OP, my one and only issue with this is how to count nct. Cause is it fair to say that they are all the same? Are they really one boy group? They operate under very different styles after all, and I don't know if they really are one. In this case, can we attribute nct dream's digitals to nct as a whole? This is my issue with these sweeping statements, the units have different standings and popularity and to say that any achievement is an achievement by nct as a whole creates issues because nct dream may not, for instance, be as popular in the us, whereas 127 is less popular in Korea, so to combine those achievements creates a false sense of popularity.
This was somewhat off topic. My apologies.