One thing to take into deep consideration, is the fact that these "overzealous parents" who are responsible for forming professional style leagues and paving the way for professional instructors, trainers, clinics, etc., have also made it very convenient for the majority of "us reasonable" participants to play and enjoy in a relatively well oiled and convenient world of fastpitch softball or what ever sport, fine arts, etc.
Just think back a few years ago when a hitting instructor, or speed and agility trainer was a catch phrase for college and pro players. Now, there seems to be one in every city, and to be honest, it makes me and my DD happy not to have to drive 3 hrs to attend these. There will always be those who push the envelope, whether it be medicine, music, politics, etc., and there will always be "victims" of this extremism. The trick is to participate, enjoy and grow--making sure all the way that what you are doing is truly what is best for your kid.