Actually considering the alternative to ALICE which is the "Lock down, Alice is 1000 times better. Alice gives options and there is no order in how they can be used. Alert people to what's happening Lock down, Inform, Counter or escape. With Alice people have choices as compared to most districts choice to stay locked in a room and be a static target. In regards to counter, its always the last choice, but at least they are teaching people if some madman come into a room shooting, to do something fight back ,escape, anything but just sit there and be an easy target. There are stats from the virgina tech massacre that proved those who locked down and stayed in place those rooms had the most killings. the rooms that barricaded or escaped had the least. The whole lock down response came directly from the prison system.
To add:
The info from the original post either sounds like bad training, bad ALICE training, or (no offense to the OP) bad school faculty who either didn't focus on the right part of the training or don't yet understand the concepts.
Before I get blasted, hear me out. I understand this might sound crazy to you all but you need to put yourself in the staff's shoes and circumstances first. It's easy for us to say "oh active shooter?!? I'll shoot him and problem solved!" But sadly, that doesn't work and is not an option for an unarmed/untrained/unprepared teacher.
In the ideal world, there would be no active school shooter. Since we don't live in an ideal world, that can't happen. The next best thing would be for the crazy guy with a gun and bad intentions to walk into the school and then get blasted by a teacher, parent, cop, or school security, ect. But let's say that isn't possible either. What's next? Most current school plans are a complete lock down. Lock down as in turn off the lights, lock the door, lower the shades, and hide in the corner of the class room.
That's far from ideal. At least ALICE is a start in the right direction. ALICE advocated that if the known threat is in the north wing, the south wing should beat feet off campus. ALICE advocates for barricading the areas that can't get to safety and not JUST locking the door. They mention throwing stuff because odds are the gunman might flinch with a stapler or chair whizzing at his head. It's better odds than rushing someone who isn't dodging anything. All I know is that if I was in the situation and it came to it, I would rather throw something and rush the bad guy than pray with my back turned.
Is ALICE the end all be all, absolutely not. But it's a step in the right direction. It is offering more than just locking down and sheltering in place. It is one small step closer to returning fire.
Take it for what you will.