I guess my thinking is that every little girl needs to be able to do a handstand, back-bend and the monkey bars to be able to survive the playground.
Well, I have never done a handstand or a back-bend and my monkey bar skills were lacking and it never really bothered me. There are lots of other things going on on the playground that don't require these skills. In fact, on my playground the girls who did handstands were celebrities. They were certainly not the norm.
Do you have any reason to worry about her balance or her visual tracking? My mother and I were both really bad at ball games and, as adults, found we had visual tracking problems that were solved with some eye exercises. I do wish I had known about the eye problems sooner.