Yaosobi could actually reach 1 on youtube South Korea this week. It's close but they're leading for now.
Especially doing a Friday release in the same day as Taylor album Idk if it was the best strategy.
I know that this Friday release reaffirms kpop's obsession with the US market and the Billboard charts but imo kpop artists shouldn't be bothered about western artist as competition. It will only influence the positions on the charts but won't suddenly decrease the potential streams. Taylor will compete for the top 50 on the hot100 and for #1 on the BB200 chart, while newjeans will be competing for a place on the lower half of the hot100 and with their album potentially for top10 on BB200. And there are other markets besides the U.S. where a kpop artist will do much better and don't have to even be worried about Taylor blocking them.
And about the amount of 'tts' newjeans are doing in a short time, I would say that I expect it to go quite similar as with their debut. The songs that were teased first will get most of the attention, and then the final one(s), just like cookie, will be a bit behind them.