both should be banned top handled saws are a liability.
WHAT? A liability for someone without the muscle, If your dumb enough to john wayne a trim saw by your face, lanyard or other!!! then you deserve what you get!!
personally, there is a place for one handing & a place for both hands(personal preference). talk like this prompts the MFG & unknowledgeable homeowner to petition for just such a thing(banning that is).
IMO if you feel comfortable using your saw with one hand then do so!! but dont mention banning, god that irritates me!!!
LXT................