Music is another topic, but when you think of member composition doesn’t it seem like JYPE’s methods are outdated?
The groups revolve around great dancers but seem to lack members with natural charisma. Think Jennie, Hyein, Chaewon. Ryujin is more the quiet strong type. The only exception was Somi but they mishandled her so she left.
It always doesn’t hurt to have MORE visuals added to the group even if some people say they are the “useless” ones. Bringing in money is literally the most useful thing in a business. If JYP had his way Twice would just have been 6 members and no Tzuyu, Mina or Sana.