They're not in a situation where JYP is limiting Twice's individual potential, so it destroy all the potential that Nayeon and Tzuyu have. Adore gives them plenty of individual schedules.
This is one of the reasons why I really doubt they will stay on top for so long. We all know it's all about hype. The reason why I think Twice is also falling quickly in Korea is that their current 'IT girl' is basically from Japan, which helps them there. All the top girl groups in other generations before this had really strong 'it girls' for the hype's sake of the group among the public. SNSD had Yoona and Taeyeon, Blackpink had Jennie, and all of them showed that early in their careers. While Newjeans members are literally lagging behind Wonyoung and Karina, probably even Chaewon and Yuna. They don't really have huge viral moments individually that people can directly point out, except for Minji with that Kalguksu controversy. They are rarely trending and don't have huge engagement in social media individually.
The girls don't have that strong individual charisma and star quality. What a shame that they are already given way for that by their company, and they're successful as a group.