Why I don't have long-term expectations for Lee Soo-man's idols

I admit that Lee Soo-man's idols are well-prepared upon debut.
It's a shame there are many Chinese members, but it's true they seem just as skilled.
Also, SM fans who originally liked Yoo Young-jin's style
might feel nostalgic and go wild since that kind of sound is coming out after a long time.
However, while Lee Soo-man has always released well-prepared content,
he is also very stubborn. Yoo Young-jin's songs tend to be very polarizing.
As they move through the next album and the one after that, I think we'll see the limits as the "Yoo Young-jin style" starts to become repetitive and excessive.
In the past, whenever SM felt they were peaking, they would drop repetitive songs and give better tracks to rookie groups to refresh the fandom.
SM used to be the top in idols, but TVXQ was pushed by BIGBANG,
SHINee was overtaken by INFINITE and BEAST,
and EXO was overtaken by BTS. To reach the top, they need mainstream appeal.