I think this is a way to try and engage some kids at school. They will likely think it's cool to see something they did on the internet, even if it's only for parents to see. And getting likes and comments is probably a thrill.
Helicopter parents will still helicopter, even without a site like this. Maybe this gets a kid excited about doing school work. That is a potential plus.
I know people are averse to "more technology" in the schools, but guess what, it's not going away. It never will and it will likely be more prevalent in the future. It's something everyone will eventually have to adapt to.