There's a difference between being the nations gg/bg and being trendy as of right now. a lot of (more recent) kpop fans think "they're talked about right now so they're the nations group". groups like snsd qualify as the nations group, not twice. twice is trendy, not saying they aren't popular, but they're trendy, meaning at this very moment, they're popular for different reasons. could they someday be the nation's gg? possibly, in the far ass future, but no matter what snsd can not release any or much music from this point and they've made their mark. they are legends, whereas twice ain't to that level right now. this whole gg/bg debate wouldn't be a thing if folks understand the difference between those two things.
edit: the mods really hijacked my shit