As an aside, we spent many years teaching ourselves to reduce the IAS for an approach to minimums. Odd really when our FW brethren cant do that and have higher speeds and lower minimums than us.
Every ILS I have flown all around the World have had thousands of feet of concrete behind them to allow you to stop. Why make things difficult by slowing down on the approach.
The faster you come down the slope the less time you have to cock it up; smaller groundspeed differences and less drift.