Why do people say JYP treats his girl groups better when he doesn't even let them produce their title tracks?

[Corysilk]

Clearly Twice have been involved in the music making process lately, but they still have absolutely no input in their title tracks.  Meanwhile their baby brothers gets full creative control over their projects.  Sure you can say that JYP lets his boy groups do what they want because he doesn't care about their success, but if he was truly concerned about his girl groups he would have hired the top producers to make fresh title tracks instead of doing it himself knowing that his own songs don't even top the charts like that!