I don't have those ISO papers either but the free PDF from ICC gives some bkgnd on what they consider scene referred (as was Eric's post to the CC list). Perhaps not enough information to extrapolate the full meaning.
My take on the matter based on this is we need to be somewhat careful about what we call scene referred especially if we believes it defines scene colorimtery.
In the end, the process's used either produce results we're happy with or they don't. That's why I take caution using the term 'accurate color'. It does appear some feel the need to jump through extra steps to get a 'rawer' but demosaiced data to begin the edit process, the final results being 'more accurate'. Outside of some (rare) workflows where this may be necessary, I prefer to avoid that and just let the raw converter of my choice produce images as I wish to express them visually.