I recall there have been cases for which LE has not reacted positively when non-LE had attempted to join in the investigation; it will be interesting to witness responses of LE across the country (and/or world) if/when the PE guys attempt to sell the model developed in the SM case (hundreds of amateurs and professionals) to be used in other investigations.
The burgeoning model has proven a worth so far, long before the SM case is resolved. More ground covered, potential evidence gathered, areas and items of interest tagged and logged, photo and document repository, etc.
It seems it should be an easy sell for use in missing persons cases... let's hope LE departments at large are receptive to the idea. It could become a huge business opportunity or a best effort for non-profits.