Thank you for the correction Pace, I really cannot understand why so many on a GA forum get it wrong
You ask if people have noticed why an ILS is at 3 degrees, again, this is fine flying the ILS - but also why most airfields with one have a larger area of protected airspace! I can see your argument with power, but again, most here were not saying do not use a powered approach.
Turning final INSIDE the ATZ will put you about 400' at 1 mile from the threshold (3 degree will be 300' a mile from the TDZ so actually about the same height), landing just after the threshold will still require some power but as you are not going the same distance in (3 degrees following the ILS lands you almost 1,000' in) you will have a steeper slope. So
please, listen to the reasoning for NOT following a 3 degree slope, otherwise you will find yourself held off in your Citation even more while a light aircraft drags in from miles out, or be sitting in the clubhouse of a small airfield watching someone go off the end off the runway after landing too far in!