I can understand 1 and 2 of the rules you posted. I do think three shots in 15 seconds is kind of vague. To me it sounds like you could walk up to the line and pop off three shots in one second and then not shoot again for another 14 seconds. I tell people at the range I belong to, to give themselves a one second count between shots. Also, seeing how poorly some people shoot at seven yards, with a spread you couldn't cover with a pasta platter, it is nice that they should be required to take time to sight the firearm each time they pull the trigger.
As far as number 2 goes just look on you tube at how many people either shoot themselves in the leg or hit the ground right next to them.
As for #4 I agree, I have no idea what they mean by "Tactical".
Most of the rules of this nature are due to insurance requirements.