DFC,
You suggest that
"there is absolutely no problem with the aircraft maintaining level flight on one engine. In fact it is a public transport requirement".
As this statement follows directly on from
"I expect that everyone on a single engine non precision approach will lower the gear at the FAF. They will then (subject to step downs) get down to MDA as soon as possible and fly level at that until visual or MAP"
it appears you are suggesting that the two are linked, ie one has a mandated ability to fly level OEI with the gear down ?
I, for one, have missed something here. Could I ask for you to guide me to the requirement which supports your statement , please ?