but if you set up a RoD that equates to 3degrees and you monitor your height v DME scale then you give yourself a reasonable chance of getting to the runway
"equates to 3º" ... "monitor height" ... AND ALL THIS ON AN APPROACH A HALF A MILE OR MORE off to the side of the runway OVER UNSUREVEYED TERRAIN. That's not a "reasonable chance of getting to the runway" - that's a reasonable chance of getting to a visual position 50' above a 100' tree half a mile away from the runway.
If you don't understand that - you don't understand the difference between a precision appraoch and a VOR approach.
This is a recipe for a "tin can" aircraft slamming into a tree or house off to the side of a runway.
The ACTUAL, TESTED, decision resulted in all passengers surviving.