When clearing a malfunction the standard approach is to sweep your hand over the slide to both clear the jam and rack the slide to cycle the next round to get the gun back in action.
The danger with a slide mounted safety or decocker is that you could inadvertently flip the safety as you sweep your hand over the slide while racking.
At least this is what I’ve been taught. Seems to make sense.
i agree.in my stoeger cougar , it hurts my finger when i am cocking the gun because the safety/decocker is on the rail