I think this guy wrote this with tongue in cheek. I find it hard to believe anyone is so insane as to think of the "fairness" involved in escaping from a homicidal maniac.
"An alternative to lockdown is immediate exodus via announcement. Although this removes potential hostages and makes it nearly impossible for the shooter to acquire preselected targets, it unfairly rewards resourceful children who move to safety off-site more shrewdly and efficiently than others."
"But as a progressive, I would sooner lay my child to rest than succumb to the belief that the use of a gun for self-defense is somehow not in itself a gun crime."
I find it extremely hard to believe that anyone could look down at his child's grave and think, "Hey, you're dead, but I didn't have to compromise my morals to protect you."
Either this was some very dry sarcasm, or this guy is certifiably insane and does not value human life in the least. I pray for the former, not the latter.