I don't see any problem with the parents being given information on how to prevent their kids personal info from being given to ANY type of employment recruiter.
The fact that the school districts have decided to make the parents aware of their legal rights should be commended IMO.
As for the exclusion of recruiters from schools, if they excluded all business it might be palitable but it wouldn't serve the kids properly since they wouldn't be given the opportunity to gather info on carreers that they may not have persued on their own.
So, it comes down to a few simple but emotional principles...
Do you want the gvmt to have access to your kids personal info w/o restrictions at all, or
Do you want the parents to be able to say who gets personal info on their kids.
Big intrusive government
or
A parents right to choose
These are two basic differences that BOTH sides have fought for or against when the other party is trying to force one or the other on them.
BTW, I jioned the ARMY after visiting a recruiter at the JC I was attending, before the draft.