Umm... yah, I get the schools point of view, but as the wife of a military member, I get where she's coming from. Deployments are HARD on kids. Her explanations are perfectly valid, and since she's already working with a psychologist, I don't see why the school didn't release him. Having separation anxiety is certainly not going to get any better when you take a child away who already has to deal with a parent being gone.
On the flip side of this, I read a comment on the page I saw this on http://moms.today.com/_news/2011/02/15/6058506-6-year-old-committed-to-psych-ward-against-moms-wishes, and it's absolutely true. The public school system has evolved into an extra parent providing before and after school programs, etc., etc,... and we're to blame. Don't judge me too harshly. I know this isn't true of everyone, but MANY people don't know what to do with their kids when school is out... or they're pushing for all day kindergarten (this would be for 5 year olds friends!) so that they don't have to worry about arranging child care options for their kids. I get that there are people (namely women) who have to work in addition to their spouses income to make ends meet... I have a sister that was divorced with 3 little girls... I get it, I do, PROMISE, but a majority of the women that work do so not because they have to. (Please don't argue here if you don't agree with me. I can assure you that I don't see "wants" that you may see as "needs" in that way and there's nothing you can say that will make me do so). Anyway! We've turned the school system into monstrous child rearing institutions and we can't really get all up in arms when they turn parental. You've given your child to the system. I'm not saying that you don't have any say, by golly I would go sit in my kids class everyday if they were in public school and insert my nose in everything (hence why I say that the schools are actually quite blessed that we homeschool... it wouldn't be very fun for either party involved to have my kids there), so yes, be protective mommy, I beg you! But at the same time, we've relinquished a lot of rights when we allow our child to be indoctrinated (that can be for good or bad) away from home upwards of 8 hours a day.
So, there you have it... the double edged sword. Really don't know where I stand on this one. I'm appalled and would be REALLY upset as a parent, but the schools really couldn't just let this one fly because people would be up and arms and blaming them if anything happened to this child. Oh the web that we sew!