It still has a range then. This can be 6 foot or 200 foot. I didn't see anyone specify. The reporter was saying that as far as the college are concerned, they don't care where students are once they're off school property. How can he be speaking for all school staff? Like red_dog007 said, a school in Philly gave students laptops what actually took photos of the kids every few minutes so they could see what they were doing at home (ie potentially getting changed for bed umongst other things). There's enough control freaks and perverts around for me to not want to give up any more privacy than is absolutely essential.
You're taking that one small video as all source of information. I think there's more to the complaints than one kid saying "it's too big and like a dog collar".
At face value, they don't care about the kids safety, it's all about receiving more money. I'm not saying you're wrong as such, and I agree that teachers knowing when a student gets to school and what classroom they are in is nothing sinister and it may even save them time. But it's the abuse it's open to and where this need for control leads to thats the issue.