The public are not FAL holders. FAL holders are a subset of the public that have more training than the wider public. I take your point that FAL holders may have less training that the police, but that is not always true either is it? Many FAL holders have screeds more firearms experience and practicable use than the general police (non-specialised) although legal training will be distinctly lacking.
From my time, the guys I worked with were all useless. I cleaned up everyone all the time with pistols and rifles and I am no pistol shooter. If I saw a policeman coming to protect me with a firearm I would get completely behind him, lie down and play dead, and I still wouldn't guarantee my safety.
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