I knew you were going to go there on the futures/lives thing. But I will point out that, regarding engineers, you answrered your own question. Engineers design things with life threatening potential if done wrong. To design a bridge or building, however, does require licensing and an acceptance of potential lawsuits if your design fails and injures or kills someone. Like doctors, engineers of bridges and damns and architects of buildings have a higher level of responsibility and inherent risk involved in their work. So they carry that micromanaging within themselves.
Additionally, the comparison to doctors or engineers isn't fair because you rtypical doctor or engineer is a private sector employee. The teachers here are public sector teachers. This law and most involving teachers beyond licensing doesn't involve private schools and their employees. So, yes, the government can, and does, micromanage their employees. Just as an engineering and design firm may, if they choose, micromanage their engineers and a hospital micromanges it's interns and residents.