I definitely agree with you about the professional dancers, but I can see someone like Kayla, who does not have the dancer's body and getting a late start in the dancing business - learn classical ballet and other styles, but choose the choreographer's role... like the women on the dance show 'So You Think You Can Dance'- Mia Michaels and Sonia Rios (she has a different surname, but I do not know her marry name) these women definitely do not have the dancer's body, but are some great choreographers and put together some nice dances.
If you go back to the 2nd and 3rd episode, you will see that Miss Dianne had Cameryn, Cristianna and 2 other girls, who are not the features players in the studio) dancing lyrical and was working on their technique of pointed toes, etc... In the 1st show of this season, the Dancing Dolls lost to a squad from Florida, who were more polish in lyrical dancing and that teacher for the squad talked a lot about her girls having dance training. Miss Dianne having that woe and victim position of having girls who are unfortunate and not given a chance. But you know what, I think that the Baby Dolls can get a good foundation in dance now. In addition, the 1st episode, they show Cameryn being turned down to go to a School for the Arts and it appears that she will be taking lessons in ballet, etc... to improve her chances of getting in next year, the show does not mentioned if she will receive this training at Dancing Dolls Factory...