Agreed. This is endangerment and criminal negligence. Parents of the school's children should be outraged. Unfortunately, I don't think you're correct in saying this is incompetence on the part of the administrators. They're probably well aware of what they are doing.
The easiest way out for you would have been to ask the moderator to delete your initial and misunderstood(?) #3. Defending the indefensible is a Sisyphus dilemma. Let it go.
While I do accept your unsolicited comment as a sincere response to my observation and advise to our Milwaukee brothers and sisters (# 65) - a post specifically directed to each of them - yet unanswered - I would respectfully suggest you simply withdraw from commenting on this tread any further, and move on. Time heals all things, less another ill-considered comment slips from your pen and finds its way posted to a future FR thread.