Wellington,
I will never give any aircraft 240 kts on final.However I do notice that many operators will fly turboprops at these speeds,without any prompting from us.These include Eastern who have said that their SOP is 160kts,but they will fly 240-140kts by themselves on the JS41.
Perhaps it's a lack of appreciation on your part about intergrating fixed wing and helis on the ILS,with vortex,and tower gap spacings that is the problem.I can only guess to which airline you fly for as you don't say.It wouldn't begin with an E perhaps?
As for the great E service to SVG then that will be another candidate for blocking the BAA's crumbling taxiways up,waiting for a stand.Where's Stand 0 and the runway extension gone? To fix the taxiways that's where.