I don't disagree Seventeen declined in comparison to their digital performance in 2023, but there's still a whole abyss between their current performance and going to TWS' current level.
'Plot Twist' is literally the only song keeping TWS afloat. Their lastest comeback, 'Countdown', peaked at 72 on Melon Daily and 56 on Circle Digital Chart — even below Plot Twist after more than one year of charting. What proves this song didn't really translate into stable success to them.
Seventeen declined, but Thunder was still #1 on Melon Top 100, peaked #18 on Melon Daily and debuted at #1 on Circle Digital, what proves their fandom is still going strong.
Right now Seventeen is still on Melon Daily Top 100, while Countdown is nearly leaving Top 200, even though, their comeback was relatively close to each other (around one month).