Reading again seems all your 4's and 5's are getting to choose their own BUT the coach is not telling the 4's to stay seated. Is that correct? If so, I would definitely have your girls change their poses and say something at practice. I know one of my girls is a researcher (like me) and will look up YouTube videos and rules for everything, so you guys could always say something like you were looking up endings for inspiration and saw that all remained seated, looked around on the USAG website to figure out why and saw the floor routine by-play (it is listed, step by step I the website, easily accessible for all).