...in which case it sounds like "ATC" and the likes of Boeing are going to have to enter into discussion about procedures and their compatibility with Mode S .....which is the subject of debate elsewhere.
Have to say that certainly in some parts of the world ATC can cope perfectly well with clearing us for a stepped descent "via" the STAR, even in very busy airspace such as LAX, where there's a similar problem since again the MCP is set to the terminating altitude of a convoluted procedure with multiple crossing above or at restrictions...then again maybe they haven't discovered the joys of Mode S yet!