Honestly, as long as they are improving, it's fine. Noel fucking sucked at singing and she still sucks but at least she can hold a tune. Ame was a mess and on stage she is adorable. Fauna also kinda sucks at singing but she killed it in the concert. They all have practiced and compared to early on, they have improved greatly. The whole idol thing is overblown and even if they suck at singing and dancing if they can atleast just act cute, people will eat it up.