Are some getting confused with an NDB-DME? This is an NDB only with no accurately defined descent point, and therefore no way of knowing if you are on a 3 degree path for stability criteria, and almost certainly will result in a dive and drive which again has been outlawed for decades.
It used to be a sim scenario at MyTravel. The crew would (naughtily) define a descent point by GPS. The instructor would simulate a GPS fault (map shift), because you are only meant to use the NDB and a stopwatch. All sorts of fun then ensued.
The conclusion is that dive and drive NDB approaches are only for operations without any stable approach requirements. Which is why I have never attempted one in 20 years!