I agree with you that suspension is vary rarely that good of a punishment unless the student caused harm to another student which did not happen in this case. If you suspended students for doing things only harmfull to themselves then you are pretty much just telling them to take a day off and giving them some R&R. At the same time i dont think the punishment is to severe at all, at some schools the cops would be called right away and the student would have to deal with the law, and would also miss way more than just one weeks activity. The punishment might not really make that much sense, but i dont think it is to severe at all, just my two cents but im probally wrong.